The salary of a person was first increased by 20% and then decreased by 20%. If his original salary was Rs. 5000, what is his final salary? MCQ with Answer and Explanation

Question

The salary of a person was first increased by 20% and then decreased by 20%. If his original salary was Rs. 5000, what is his final salary?

A. Rs. 4600

B. Rs. 4800

C. Rs. 4920

D. Rs. 4900

Answer: Option B

Solution (By JKSSB Mock Tests)

5000 × 1.2 × 0.8 = 5000 × 0.96 = 4800.

This question belongs to: Maths Percentage

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Question #1

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8% of a number is 16. What is 25% of the same number?

A. 55

B. 45

C. 50

D. 40

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Correct Answer: Option C

Explanation:
Number = 16/0.08 = 200, 25% of 200 = 50.

This question belongs to: Maths Percentage

Question #2

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Cost of 25 items = SP of 20 items. Profit %:

A. 22.5%

B. 25%

C. 20%

D. 30%

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Correct Answer: Option B

Explanation:
Profit = (5/20)×100 = 25%.

This question belongs to: Maths Percentage

Question #3

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A candidate scored 30% marks and failed by 60 marks. Another candidate scored 50% marks and got 60 marks above the passing marks. Find the maximum marks.

A. 550

B. 600

C. 650

D. 500

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Correct Answer: Option B

Explanation:
0.3M + 60 = 0.5M - 60 → 0.2M = 120 → M = 600. Passing marks = 0.3×600+60 = 240.

This question belongs to: Maths Percentage

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