Side of square increased 15%. % increase in area: MCQ with Answer and Explanation

Question

Share Report Error

Side of square increased 15%. % increase in area:

A. 35%

B. 32.25%

C. 30%

D. 40%

Answer: Option B

Solution (By JKExamLibrary)

Area multiplier = 1.15² = 1.3225, increase 32.25%.

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 man saves 20% of his monthly income. If his monthly expenditure increases by 25% and his income increases by 30%, his savings increase by what percent?

A. 55%

B. 45%

C. 40%

D. 50%

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Let income=100, exp=80, sav=20. New inc=130, new exp=80×1.25=100, sav=30. Increase = 10, % = (10/20)×100 = 50%.

This question belongs to: Maths Percentage

Question #2

Share Report

Two alloys have copper 60% and 35%. Mixed to get 50% copper. Ratio of mixing:

A. 3:2

B. 2:3

C. 5:3

D. 3:5

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Using alligation: (60-50):(50-35) = 10:15 = 2:3, but the first alloy gives 10% excess, second gives 15% deficit, so ratio 15:10 = 3:2.

This question belongs to: Maths Percentage