A's income 30% less than B, B's 20% less than C. C's income is what % more than A's? MCQ with Answer and Explanation

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A's income 30% less than B, B's 20% less than C. C's income is what % more than A's?

A. 66.67%

B. 72.5%

C. 78.57%

D. 80%

Answer: Option C

Solution (By JKExamLibrary)

A=0.7B, B=0.8C → A=0.56C → C = A/0.56, more = (0.44/0.56)×100 = 78.57%.

This question belongs to: Maths Percentage

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Question #1 Report Error

If 20% of (A+B) = 50% of (A-B), then A:B is:

A. 3:7

B. 5:3

C. 3:5

D. 7:3

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Correct Answer: Option D

Explanation:
0.2(A+B)=0.5(A-B) → 2(A+B)=5(A-B) → 2A+2B=5A-5B → 7B=3A → A/B=7/3.

This question belongs to: Maths Percentage

Question #2 Report Error

A student scored 30% marks and failed by 30 marks. Another scored 42% marks and got 30 marks more than passing. Pass marks are:

A. 200

B. 180

C. 150

D. 160

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Correct Answer: Option B

Explanation:
Let max M. 0.3M + 30 = 0.42M - 30 → 0.12M = 60 → M = 500. Pass = 0.3×500 + 30 = 180.

This question belongs to: Maths Percentage

Question #3 Report Error

2% of 2% of 1000 is:

A. 0.004

B. 0.04

C. 0.4

D. 4

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Correct Answer: Option C

Explanation:
2% of 1000 = 20, 2% of 20 = 0.4.

This question belongs to: Maths Percentage

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