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SSC CGL Tier 1 Full Mock Test: Practice Test 13

Question paper with answer key. Selection Pro

Q1. Which Gupta emperor is famously known as the 'Napoleon of India'?
  1. Chandragupta I
  2. Chandragupta II
  3. Samudragupta
  4. Skandagupta

Answer: (C) Samudragupta

Historian V.A. Smith called Samudragupta the 'Napoleon of India' due to his extensive military conquests.

Q2. Which fundamental right is called the 'Heart and Soul of the Constitution' by Dr. B.R. Ambedkar?
  1. Right to Constitutional Remedies
  2. Right to Equality
  3. Right to Freedom
  4. Right against Exploitation

Answer: (A) Right to Constitutional Remedies

Dr. Ambedkar referred to Article 32 (Right to Constitutional Remedies) as the heart and soul of the Constitution.

Q3. Which layer of the atmosphere contains the protective ozone layer?
  1. Troposphere
  2. Mesosphere
  3. Stratosphere
  4. Thermosphere

Answer: (C) Stratosphere

The ozone layer is located in the Stratosphere and absorbs harmful ultraviolet radiation from the sun.

Q4. What is the chemical name of Baking Soda?
  1. Sodium Carbonate
  2. Sodium Hydroxide
  3. Sodium Nitrate
  4. Sodium Bicarbonate

Answer: (D) Sodium Bicarbonate

Baking Soda is chemically known as Sodium Bicarbonate (NaHCO3).

Q5. Who founded the Arya Samaj in 1875?
  1. Swami Dayanand Saraswati
  2. Swami Vivekananda
  3. Raja Ram Mohan Roy
  4. Keshab Chandra Sen

Answer: (A) Swami Dayanand Saraswati

Swami Dayanand Saraswati founded the Arya Samaj in Bombay in 1875.

Q6. Which planet is commonly referred to as Earth's Twin?
  1. Mars
  2. Venus
  3. Jupiter
  4. Mercury

Answer: (B) Venus

Venus is called Earth's twin because of its similar size, mass, and proximity to Earth.

Q7. Which enzyme in human saliva helps break down starches into simpler sugars?
  1. Pepsin
  2. Trypsin
  3. Salivary Amylase
  4. Lipase

Answer: (C) Salivary Amylase

Salivary Amylase (Ptyalin) begins the breakdown of carbohydrates in the oral cavity.

Q8. The concept of 'Five-Year Plans' in India was borrowed from which country?
  1. USA
  2. UK
  3. France
  4. USSR

Answer: (D) USSR

India borrowed the concept of centralized Five-Year Plans from the former Soviet Union (USSR).

Q9. Which metal is liquid at room temperature?
  1. Mercury
  2. Bromine
  3. Sodium
  4. Gallium

Answer: (A) Mercury

Mercury (Hg) is the only metallic element that remains liquid at standard room temperature.

Q10. Where are the headquarters of the Asian Development Bank (ADB) located?
  1. Tokyo
  2. Manila
  3. Beijing
  4. Singapore

Answer: (B) Manila

The Asian Development Bank is headquartered in Mandaluyong, Metro Manila, Philippines.

Q11. Bihu is a traditional folk dance belonging to which Indian state?
  1. Odisha
  2. West Bengal
  3. Assam
  4. Manipur

Answer: (C) Assam

Bihu is the major folk dance and festival of Assam.

Q12. Which Article of the Indian Constitution addresses the abolition of untouchability?
  1. Article 14
  2. Article 15
  3. Article 16
  4. Article 17

Answer: (D) Article 17

Article 17 explicitly abolishes untouchability and forbids its practice in any form.

Q13. Who was the founder of the Slave Dynasty in India?
  1. Qutb ud-Din Aibak
  2. Iltutmish
  3. Balban
  4. Razia Sultana

Answer: (A) Qutb ud-Din Aibak

Qutb ud-Din Aibak established the Mamluk (Slave) Dynasty in 1206 CE.

Q14. What is the SI unit of Electric Current?
  1. Volt
  2. Ampere
  3. Ohm
  4. Coulomb

Answer: (B) Ampere

The SI unit for measuring electric current is the Ampere (A).

Q15. Which vitamin deficiency leads to the disease Scurvy?
  1. Vitamin A
  2. Vitamin B1
  3. Vitamin C
  4. Vitamin D

Answer: (C) Vitamin C

Scurvy is caused by a severe lack of Vitamin C (Ascorbic acid).

Q16. Which Indian state has the longest coastline?
  1. Tamil Nadu
  2. Maharashtra
  3. Andhra Pradesh
  4. Gujarat

Answer: (D) Gujarat

Gujarat possesses the longest coastline among all Indian states (approx 1,600 km).

Q17. Who led the Revolt of 1857 in Kanpur?
  1. Nana Saheb
  2. Begum Hazrat Mahal
  3. Kunwar Singh
  4. Rani Lakshmibai

Answer: (A) Nana Saheb

Nana Saheb led the uprising during the 1857 Revolt in Kanpur.

Q18. What is the name of the gas released during plant photosynthesis?
  1. Carbon Dioxide
  2. Oxygen
  3. Nitrogen
  4. Hydrogen

Answer: (B) Oxygen

Plants release oxygen as a byproduct of photosynthesis.

Q19. Which schedule of the Indian Constitution contains the list of recognized languages?
  1. Seventh Schedule
  2. Ninth Schedule
  3. Eighth Schedule
  4. Tenth Schedule

Answer: (C) Eighth Schedule

The Eighth Schedule lists the 22 official languages recognized by the Constitution.

Q20. In economics, Giffen Goods are special types of goods for which:
  1. Demand falls when price rises
  2. Demand rises when income rises
  3. Demand remains constant when price changes
  4. Demand rises as price rises

Answer: (D) Demand rises as price rises

Giffen goods violate the Law of Demand; demand increases as their price increases.

Q21. Which Indian river is popularly known as 'Dakshin Ganga'?
  1. Godavari
  2. Krishna
  3. Kaveri
  4. Narmada

Answer: (A) Godavari

Godavari is termed 'Dakshin Ganga' because of its large size and extent in peninsular India.

Q22. Who invented the telephone?
  1. Thomas Edison
  2. Alexander Graham Bell
  3. Nikola Tesla
  4. Guglielmo Marconi

Answer: (B) Alexander Graham Bell

Alexander Graham Bell was awarded the first U.S. patent for the telephone in 1876.

Q23. The famous Sun Temple of Konark was built by which ruler?
  1. Rajaraja Chola I
  2. Kharavela
  3. Narasimhadeva I
  4. Ashoka

Answer: (C) Narasimhadeva I

King Narasimhadeva I of the Eastern Ganga Dynasty constructed the Konark Sun Temple.

Q24. What is the pH value of pure water at room temperature?
  1. 0
  2. 5
  3. 14
  4. 7

Answer: (D) 7

Pure water is neutral and has a pH of exactly 7.

Q25. Which battle marked the establishment of Mughal rule in India?
  1. First Battle of Panipat
  2. Battle of Khanwa
  3. Second Battle of Panipat
  4. Battle of Plassey

Answer: (A) First Battle of Panipat

Babur defeated Ibrahim Lodi in the First Battle of Panipat (1526) to establish Mughal rule.

Q26. Find the next number in sequence: 3, 7, 15, 31, 63, ?
  1. 95
  2. 127
  3. 125
  4. 120

Answer: (B) 127

Pattern: (x * 2) + 1. (63 * 2) + 1 = 127.

Q27. If APPLE is coded as BQQMF, how is PEARL coded?
  1. QFBSM
  2. QFSSM
  3. QFCBS
  4. QFBSN

Answer: (A) QFBSM

Pattern: +1, +1, +1, +1, +1. P->Q, E->F, A->B, R->S, L->M => QFBSM.

Q28. Select the odd one out:
  1. Square
  2. Triangle
  3. Rectangle
  4. Cube

Answer: (D) Cube

Square, Triangle, and Rectangle are 2D plane figures; Cube is a 3D solid figure.

Q29. A man drives 12 km North, then turns East and drives 5 km. How far is he from the start?
  1. 17 km
  2. 13 km
  3. 15 km
  4. 7 km

Answer: (B) 13 km

Distance = √(12² + 5²) = √(144 + 25) = √169 = 13 km.

Q30. Statements: Some pens are pencils. All pencils are erasers. Conclusion: Some pens are erasers.
  1. Does not follow
  2. Cannot be determined
  3. Follows
  4. Either follows or not

Answer: (C) Follows

Overlap between pens and pencils carries over into erasers. Conclusion follows directly.

Q31. Introducing a boy, a girl says, 'He is the son of the daughter of my father's wife.' How is the boy related to the girl?
  1. Brother
  2. Son
  3. Uncle
  4. Nephew

Answer: (D) Nephew

Girl's father's wife = Girl's mother. Daughter of mother = Girl/Sister. Son of sister = Nephew.

Q32. Find missing letter in sequence: A, C, F, J, O, ?
  1. U
  2. T
  3. S
  4. V

Answer: (A) U

Add consecutive steps: +2, +3, +4, +5, +6. O(15) + 6 = U(21).

Q33. Complete the analogy: Book : Author :: Statue : ?
  1. Painter
  2. Sculptor
  3. Architect
  4. Mason

Answer: (B) Sculptor

An author creates a book; a sculptor creates a statue.

Q34. If 15th August 2011 was Monday, what day was 15th August 2012?
  1. Tuesday
  2. Thursday
  3. Wednesday
  4. Friday

Answer: (C) Wednesday

2012 is a leap year (includes Feb 29), adding 2 odd days. Monday + 2 days = Wednesday.

Q35. Solve: If 'A' means '+', 'B' means '-', 'C' means '×', 'D' means '÷', find 12 C 4 A 8 D 2 B 5
  1. 47
  2. 52
  3. 45
  4. 41

Answer: (D) 41

12 × 4 + 8 ÷ 2 - 5 = 48 + 4 - 5 = 47.

Q36. Rohan ranks 11th from top and 27th from bottom in a class. Total students?
  1. 37
  2. 38
  3. 36
  4. 39

Answer: (A) 37

Total = (11 + 27) - 1 = 37.

Q37. Find missing term: 2, 6, 12, 20, 30, ?
  1. 40
  2. 42
  3. 44
  4. 48

Answer: (B) 42

Pattern: n² + n or +4, +6, +8, +10, +12. 30 + 12 = 42.

Q38. Venn diagram representing: Animals, Dogs, Cats.
  1. Three separate circles
  2. One circle containing two overlapping circles
  3. One outer circle with two disjoint circles inside
  4. Three nested circles

Answer: (C) One outer circle with two disjoint circles inside

Dogs and Cats are distinct animals, so they sit inside the main 'Animals' circle without overlapping.

Q39. Arrange alphabetically: 1. Eagle 2. Earth 3. Early 4. Eager
  1. 4, 3, 1, 2
  2. 4, 1, 3, 2
  3. 1, 4, 3, 2
  4. 4, 3, 2, 1

Answer: (A) 4, 3, 1, 2

Alphabetical: Eager (4) -> Early (3) -> Eagle (1) -> Earth (2).

Q40. If RED is coded as 27, what is BLUE coded as?
  1. 36
  2. 42
  3. 40
  4. 38

Answer: (C) 40

B(2) + L(12) + U(21) + E(5) = 40.

Q41. Select the odd pair out:
  1. Cow : Calf
  2. Lion : Roar
  3. Cat : Kitten
  4. Dog : Puppy

Answer: (B) Lion : Roar

Cow:Calf, Cat:Kitten, and Dog:Puppy represent the Animal:Offspring relationship, whereas Lion:Roar represents the Animal:Sound relationship.

Q42. At 6:00, what is the angle between hour and minute hands?
  1. 90°
  2. 180°
  3. 120°
  4. 360°

Answer: (B) 180°

At 6:00, hands point in exactly opposite directions forming a 180° straight angle.

Q43. Statements: All roses are flowers. All flowers are beautiful. Conclusion: All roses are beautiful.
  1. Does not follow
  2. Cannot say
  3. Follows
  4. Neither follows

Answer: (C) Follows

Roses ⊂ Flowers ⊂ Beautiful. Conclusion follows directly.

Q44. Find missing term in sequence: 1, 8, 27, 64, 125, ?
  1. 196
  2. 225
  3. 216
  4. 256

Answer: (C) 216

Cubes of natural numbers: 1³, 2³, 3³, 4³, 5³, 6³ = 216.

Q45. A is the father of B, but B is not A's son. What is B to A?
  1. Daughter
  2. Mother
  3. Sister
  4. Niece

Answer: (A) Daughter

If A is the father and B isn't his son, B must be his daughter.

Q46. Analogy: Odometer : Distance :: Speedometer : ?
  1. Acceleration
  2. Speed
  3. Time
  4. Fuel

Answer: (B) Speed

Odometer measures distance; speedometer measures speed.

Q47. Find missing letter in sequence: Y, W, U, S, ?
  1. R
  2. P
  3. Q
  4. O

Answer: (C) Q

Pattern moves backward by 2 steps: Y(25), W(23), U(21), S(19), Q(17).

Q48. A person walks 5 km South, turns right and walks 3 km, turns right and walks 5 km. Where is he from starting point?
  1. 3 km West
  2. 3 km East
  3. 5 km West
  4. 5 km North

Answer: (A) 3 km West

Moves South 5km, West 3km, North 5km. He is 3 km West of his starting point.

Q49. If '+' means '÷', '÷' means '-', '-' means '×', '×' means '+', calculate: 12 + 3 - 2 ÷ 4 × 1
  1. 10
  2. 8
  3. 5
  4. 6

Answer: (C) 5

12 ÷ 3 × 2 - 4 + 1 = 4 × 2 - 4 + 1 = 8 - 4 + 1 = 5.

Q50. In a row, A is 5th from left and B is 6th from right. If they swap positions, A becomes 13th from left. How many people are in the row?
  1. 17
  2. 19
  3. 20
  4. 18

Answer: (D) 18

Total = (New position of A + Old position of B) - 1 = 13 + 6 - 1 = 18.

Q51. Select synonym of: **CANDID**
  1. Frank
  2. Secretive
  3. Deceitful
  4. Shy

Answer: (A) Frank

'Candid' means truthful and straightforward; 'Frank' is synonymous.

Q52. Select antonym of: **ARROGANT**
  1. Proud
  2. Humble
  3. Haughty
  4. Insolent

Answer: (B) Humble

'Arrogant' means boastful or proud; 'Humble' is its opposite.

Q53. Select the correctly spelt word:
  1. Accomodate
  2. Acommodate
  3. Accommodate
  4. Acomodate

Answer: (C) Accommodate

'Accommodate' has double 'c' and double 'm'.

Q54. Identify error part: *Neither of the two books are useful for the exam.*
  1. Neither of
  2. useful for
  3. the exam
  4. are useful

Answer: (D) are useful

'Neither of' takes a singular verb ('is useful').

Q55. Fill in the blank: *She is proficient ___ English.*
  1. in
  2. at
  3. with
  4. on

Answer: (A) in

The standard preposition used after proficient is 'in'.

Q56. Change to Active Voice: *The car was washed by Ram.*
  1. Ram is washing the car.
  2. Ram washed the car.
  3. Ram washes the car.
  4. Ram had washed the car.

Answer: (B) Ram washed the car.

Simple past passive ('was washed') changes to simple past active ('washed').

Q57. Change to Indirect Speech: *He said, 'I have completed my work.'*
  1. He said that he completed his work.
  2. He said that he has completed his work.
  3. He said that he had completed his work.
  4. He tells that he completed his work.

Answer: (C) He said that he had completed his work.

Present perfect changes to past perfect ('had completed') in indirect narration.

Q58. One word substitution: *One who collects stamps*
  1. Numismatist
  2. Philanthropist
  3. Polyglot
  4. Philatelist

Answer: (D) Philatelist

A 'Philatelist' studies or collects postage stamps.

Q59. Idiom meaning: **Spill the beans**
  1. Reveal a secret
  2. Drop food
  3. Cook a meal
  4. Make a mistake

Answer: (A) Reveal a secret

'Spill the beans' means revealing secret information prematurely.

Q60. Select the correctly spelt word:
  1. Separate
  2. Seperate
  3. Saparate
  4. Seperet

Answer: (A) Separate

'Separate' is spelled with 'par' in the middle.

Q61. Select synonym of: **OBSTINATE**
  1. Flexible
  2. Stubborn
  3. Gentle
  4. Docile

Answer: (B) Stubborn

'Obstinate' means refusing to change opinion; 'Stubborn' is synonymous.

Q62. Select antonym of: **TRANSPARENT**
  1. Clear
  2. Lucid
  3. Opaque
  4. Translucent

Answer: (C) Opaque

'Transparent' allows light to pass through; 'Opaque' blocks light completely.

Q63. Sentence Improvement: *She is superior than her colleague in skills.*
  1. superior from
  2. superior than
  3. superior to
  4. No improvement

Answer: (C) superior to

Comparative adjectives like superior take the preposition 'to'.

Q64. Fill in the blank: *The government declared a holiday ___ account of the festival.*
  1. for
  2. in
  3. by
  4. on

Answer: (D) on

The idiom is 'on account of', meaning because of.

Q65. One word substitution: *A life history written by oneself*
  1. Autobiography
  2. Biography
  3. Memoir
  4. History

Answer: (A) Autobiography

An 'Autobiography' is written by the person themselves.

Q66. Idiom meaning: **A piece of cake**
  1. A sweet dish
  2. A very easy task
  3. A small portion
  4. A difficult job

Answer: (B) A very easy task

'A piece of cake' refers to something very easy to accomplish.

Q67. Find error part: *The news are true.*
  1. The news
  2. are true
  3. No error
  4. is true

Answer: (B) are true

'News' is an uncountable noun and takes a singular verb ('is true').

Q68. Fill in the article: *He is ___ honest officer.*
  1. a
  2. the
  3. an
  4. no article

Answer: (C) an

'Honest' starts with a vowel sound (silent 'h'), so article 'an' is used.

Q69. Rearrange parts: P: health Q: Good R: is wealth S: indeed
  1. P-Q-R-S
  2. S-R-Q-P
  3. Q-P-R-S
  4. Q-P-S-R

Answer: (C) Q-P-R-S

Correct order: Q ('Good') P ('health') R ('is wealth') S ('indeed').

Q70. Select synonym of: **AMICABLE**
  1. Hostile
  2. Friendly
  3. Bitter
  4. Antagonistic

Answer: (B) Friendly

'Amicable' means characterized by friendliness; 'Friendly' is synonymous.

Q71. Select antonym of: **EXPAND**
  1. Extend
  2. Enlarge
  3. Contract
  4. Spread

Answer: (C) Contract

'Expand' means to become larger; 'Contract' means to shrink.

Q72. Select the correctly spelt word:
  1. Privilege
  2. Priviledge
  3. Privelege
  4. Privlege

Answer: (A) Privilege

Correct spelling is 'Privilege'.

Q73. Fill in the blank: *He abstained ___ voting.*
  1. to
  2. at
  3. by
  4. from

Answer: (D) from

'Abstain' takes the preposition 'from'.

Q74. Find error part: *Supposing if it rains, what will we do?*
  1. Supposing if
  2. it rains
  3. what will we do
  4. No error

Answer: (A) Supposing if

Using 'Supposing' and 'if' together is redundant. Use either 'Supposing' or 'If'.

Q75. Idiom meaning: **Hit the nail on the head**
  1. Do carpentry work
  2. Do or say something exactly right
  3. Hurt someone
  4. Make a huge mistake

Answer: (B) Do or say something exactly right

'Hit the nail on the head' means to describe or perform something with complete accuracy.

Q76. If 15% of a number is 45, what is 30% of that number?
  1. 60
  2. 75
  3. 90
  4. 120

Answer: (C) 90

If 15% = 45, 30% = 45 * 2 = 90.

Q77. Cost price of 10 articles is equal to selling price of 8 articles. Profit percentage is:
  1. 20%
  2. 22%
  3. 30%
  4. 25%

Answer: (D) 25%

Profit % = [(10 - 8)/8] * 100 = (2/8) * 100 = 25%.

Q78. Average of 4 numbers is 15. If a 5th number 25 is added, what is the new average?
  1. 17
  2. 16
  3. 18
  4. 20

Answer: (A) 17

Sum of 4 = 60. Total sum = 60 + 25 = 85. New average = 85 / 5 = 17.

Q79. A train covers 300 km in 5 hours. What is its speed in m/s?
  1. 15 m/s
  2. 16.67 m/s
  3. 20 m/s
  4. 25 m/s

Answer: (B) 16.67 m/s

Speed = 300/5 = 60 km/h. In m/s = 60 * (5/18) = 50/3 ≈ 16.67 m/s.

Q80. If X:Y = 3:4 and Y:Z = 8:9, find X:Z.
  1. 1:2
  2. 3:9
  3. 2:3
  4. 3:4

Answer: (C) 2:3

X/Z = (X/Y) * (Y/Z) = (3/4) * (8/9) = 2/3. Thus, 2:3.

Q81. In how many years will ₹2000 yield ₹400 as simple interest at 5% per annum?
  1. 2 years
  2. 3 years
  3. 5 years
  4. 4 years

Answer: (D) 4 years

T = (SI * 100) / (P * R) = (400 * 100) / (2000 * 5) = 40000 / 10000 = 4 years.

Q82. A can complete a task in 10 days, B in 15 days. Working together, how long will they take?
  1. 6 days
  2. 5 days
  3. 7 days
  4. 8 days

Answer: (A) 6 days

Time = (10 * 15) / (10 + 15) = 150 / 25 = 6 days.

Q83. Find the HCF of 24 and 36.
  1. 6
  2. 12
  3. 18
  4. 24

Answer: (B) 12

Factors of 24 (1,2,3,4,6,8,12,24) and 36 (1,2,3,4,6,9,12,18,36). Highest common factor = 12.

Q84. If x + 1/x = 3, find value of x² + 1/x².
  1. 9
  2. 11
  3. 7
  4. 8

Answer: (C) 7

x² + 1/x² = 3² - 2 = 9 - 2 = 7.

Q85. Perimeter of a square is 40 cm. Find its area.
  1. 160 cm²
  2. 80 cm²
  3. 64 cm²
  4. 100 cm²

Answer: (D) 100 cm²

Side = 40/4 = 10 cm. Area = 10² = 100 cm².

Q86. Find CI on ₹1000 at 10% p.a. for 2 years compounded annually.
  1. ₹210
  2. ₹200
  3. ₹220
  4. ₹250

Answer: (A) ₹210

A = 1000 * (1.10)² = 1210. CI = 1210 - 1000 = ₹210.

Q87. Solve for x: 3x - 5 = 16
  1. 6
  2. 7
  3. 8
  4. 9

Answer: (B) 7

3x = 21 => x = 7.

Q88. Volume of a cube with edge length 4 cm is:
  1. 16 cm³
  2. 32 cm³
  3. 64 cm³
  4. 128 cm³

Answer: (C) 64 cm³

Volume = edge³ = 4³ = 64 cm³.

Q89. Single discount equivalent to successive discounts of 10% and 20% is:
  1. 30%
  2. 25%
  3. 26%
  4. 28%

Answer: (D) 28%

Equivalent discount = 10 + 20 - (10*20)/100 = 30 - 2 = 28%.

Q90. Value of tan(45°) is equal to:
  1. 1
  2. 0
  3. 1/√3
  4. √3

Answer: (A) 1

tan(45°) = 1.

Q91. Simplify: 2^4 * 2^3
  1. 64
  2. 128
  3. 256
  4. 32

Answer: (B) 128

2^(4+3) = 2^7 = 128.

Q92. Sum of roots of quadratic equation x² - 5x + 6 = 0 is:
  1. 6
  2. -5
  3. 5
  4. -6

Answer: (C) 5

Sum of roots = -b/a = -(-5)/1 = 5.

Q93. If radius of a circle is doubled, its area increases by what percentage?
  1. 100%
  2. 200%
  3. 300%
  4. 400%

Answer: (C) 300%

New area = π(2r)² = 4πr². Increase = 3πr², which is 300%.

Q94. Find median of numbers: 3, 1, 7, 5, 9
  1. 3
  2. 7
  3. 4
  4. 5

Answer: (D) 5

Arranged in ascending order: 1, 3, 5, 7, 9. Middle term is 5.

Q95. Value of cos(0°) is equal to:
  1. 1
  2. 0
  3. 1/2
  4. Undefined

Answer: (A) 1

cos(0°) = 1.

Q96. Each exterior angle of a regular octagon measures:
  1. 60°
  2. 45°
  3. 30°
  4. 90°

Answer: (B) 45°

Exterior angle = 360° / n = 360° / 8 = 45°.

Q97. Find average of first 5 odd prime numbers (3, 5, 7, 11, 13).
  1. 7.2
  2. 8.0
  3. 7.8
  4. 6.8

Answer: (C) 7.8

Sum = 3 + 5 + 7 + 11 + 13 = 39. Average = 39 / 5 = 7.8.

Q98. By selling a chair for ₹360, a shopkeeper incurs 10% loss. What was the cost price?
  1. ₹380
  2. ₹390
  3. ₹420
  4. ₹400

Answer: (D) ₹400

CP = SP / 0.90 = 360 / 0.90 = ₹400.

Q99. In a 40-liter solution, salt and water ratio is 3:1. How much water is present?
  1. 10 L
  2. 20 L
  3. 30 L
  4. 15 L

Answer: (A) 10 L

Water fraction = 1/4. Water volume = 40 * (1/4) = 10 L.

Q100. Distance downstream covered in 2 hours at boat speed 8 km/h and stream 2 km/h is:
  1. 12 km
  2. 20 km
  3. 16 km
  4. 18 km

Answer: (B) 20 km

Downstream speed = 8 + 2 = 10 km/h. Distance = 10 * 2 = 20 km.