A's marks are 20% more than B's and B's marks are 20% less than C's. If A got 120 marks, C's marks are: MCQ with Answer and Explanation

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A's marks are 20% more than B's and B's marks are 20% less than C's. If A got 120 marks, C's marks are:

A. 120

B. 125

C. 100

D. 110

Answer: Option B

Solution (By JKSSB Mock Tests)

A=1.2B → B=120/1.2=100. B=0.8C → C=100/0.8=125.

This question belongs to: Maths Percentage

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Question #1

80 increased by 15% is:

A. 98

B. 90

C. 95

D. 92

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Correct Answer: Option D

Explanation:
80 × 1.15 = 92.

This question belongs to: Maths Percentage

Question #2

Fresh fruit has 72% water, dry fruit 25% water. Dry fruit from 120 kg fresh fruit:

A. 44.8 kg

B. 48 kg

C. 50 kg

D. 42 kg

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Correct Answer: Option A

Explanation:
Dry matter in fresh = 28% of 120 = 33.6 kg, in dry fruit 75% is dry matter, weight = 33.6/0.75 = 44.8 kg.

This question belongs to: Maths Percentage

Question #3

Employees reduced in ratio 5:4, wages increased in ratio 6:7. Wage bill ratio initial:final:

A. 9:10

B. 15:14

C. 10:9

D. 14:15

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Correct Answer: Option B

Explanation:
Initial bill = E×W. Final = (4/5)E×(7/6)W = (28/30) = 14/15 initial. Ratio initial:final = 1:(14/15) = 15:14.

This question belongs to: Maths Percentage

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