If the price of petrol increases by 40%, by what percent must a person reduce consumption so that expenditure increases by only 12%? MCQ with Answer and Explanation

Question

If the price of petrol increases by 40%, by what percent must a person reduce consumption so that expenditure increases by only 12%?

A. 18%

B. 15%

C. 20%

D. 22%

Answer: Option C

Solution (By JKExamLibrary)

1.4 × x = 1.12 → x = 0.8, reduction 20%.

This question belongs to: Maths Percentage

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Percentage Questions

Question #1

Share Report

If the numerator of a fraction is increased by 50% and the denominator is decreased by 25%, it becomes 5/8. Find the original fraction.

A. 5/16

B. 3/8

C. 5/12

D. 7/16

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
(1.5N)/(0.75D) = 2N/D = 5/8 → N/D = 5/16.

This question belongs to: Maths Percentage

Question #2

Share Report

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

A. 12000

B. 10000

C. 9000

D. 8000

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

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

This question belongs to: Maths Percentage

Question #3

Share Report

To pass an exam, 40% is required. A student got 150 marks and failed by 30 marks. Maximum marks are:

A. 400

B. 450

C. 500

D. 550

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Pass marks = 150 + 30 = 180. 40% of Max = 180 → Max = 180/0.4 = 450.

This question belongs to: Maths Percentage

Explore All Percentage MCQs