If the price of petrol increases by 50%, by what percent must a car owner reduce consumption to keep expenditure constant? MCQ with Answer and Explanation

If the price of petrol increases by 50%, by what percent must a car owner reduce consumption to keep expenditure constant?

A. 25%

B. 30%

C. 35%

D. 33.33%

Answer: Option D

New price 1.5, multiplier needed = 1/1.5 = 2/3, reduction = 1 - 2/3 = 33.33%.

This question belongs to: Maths Percentage

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Question #1 Report Error

55% of a number is 33 less than 70% of the same number. The number is:

A. 200

B. 240

C. 180

D. 220

Correct Answer: Option D

Explanation:
0.7x - 0.55x = 33 → 0.15x = 33 → x = 220.

This question belongs to: Maths Percentage

Question #2 Report Error

Allows 15% discount, still gains 19% profit. Markup % on CP:

A. 35%

B. 38%

C. 30%

D. 40%

Correct Answer: Option D

Explanation:
CP=100, SP=119, MP=119/0.85=140, markup 40%.

This question belongs to: Maths Percentage

Question #3 Report Error

In an election, 75% cast votes. Winner got 52% of cast votes, won by 600. Total voters:

A. 24000

B. 15000

C. 20000

D. 18000

Correct Answer: Option C

Explanation:
Cast votes C, margin 4%C = 600 → C=15000. Total T, 0.75T=15000 → T=20000.

This question belongs to: Maths Percentage