A's salary is 30% less than B's. If B's salary is 6000, A's salary is: MCQ with Answer and Explanation

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A's salary is 30% less than B's. If B's salary is 6000, A's salary is:

A. 4500

B. 3900

C. 4200

D. 4000

Answer: Option C

Solution (By JKSSB Mock Tests)

A's salary = 6000 × 0.7 = 4200.

This question belongs to: Maths Percentage

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Question #1

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A man spends 70% of his income. If he saves Rs. 3000, what is his total income?

A. 10000

B. 8000

C. 9000

D. 12000

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Correct Answer: Option A

Explanation:
Savings = 100% - 70% = 30%. 30% of Income = 3000. Income = 3000 * (100 / 30) = 10000.

This question belongs to: Maths Percentage

Question #2

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A number divided by 4, quotient increased by 25% then decreased by 20% gives 150. Number:

A. 540

B. 560

C. 600

D. 640

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Correct Answer: Option C

Explanation:
(N/4)×1.25×0.8 = (N/4)×1 = 150 → N/4=150 → N=600.

This question belongs to: Maths Percentage

Question #3

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A number is decreased by 25% and then increased by 25%. The net change is:

A. 5% decrease

B. 6.25% decrease

C. 6.25% increase

D. No change

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Correct Answer: Option B

Explanation:
0.75 × 1.25 = 0.9375, decrease 6.25%.

This question belongs to: Maths Percentage

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