Length, breadth, height increased 10%, 20%, 30%. % increase in volume: MCQ with Answer and Explanation

Question

Share Report Error

Length, breadth, height increased 10%, 20%, 30%. % increase in volume:

A. 60%

B. 72.8%

C. 66%

D. 71.6%

Answer: Option D

Solution (By JKSSB Mock Tests)

1.1×1.2×1.3 = 1.716, increase 71.6%.

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

A student multiplied a number by 7/4 instead of 4/7. What is the percentage error?

A. 100%

B. 150%

C. 206.25%

D. 200%

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
True = 4/7x. False = 7/4x. Error = (7/4 - 4/7)x = (33/28)x. % Error = ((33/28) / (4/7)) * 100 = (33/16) * 100 = 206.25%.

This question belongs to: Maths Percentage

Question #2

Share Report

After spending 80% of his income, a man saves Rs. 3000. His income is:

A. 15000

B. 16000

C. 14000

D. 12000

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Savings 20% = 3000, income = 3000/0.2 = 15000.

This question belongs to: Maths Percentage

Question #3

Share Report

If 40% of a number is added to another, second becomes 120% of itself. Ratio of first to second:

A. 2:3

B. 1:2

C. 3:2

D. 1:3

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
0.4F + S = 1.2S → 0.4F = 0.2S → F/S = 0.2/0.4 = 1/2.

This question belongs to: Maths Percentage

Explore All Percentage MCQs