Side of square increased 10%. % increase in area: MCQ with Answer and Explanation

Question

Share Report Error

Side of square increased 10%. % increase in area:

A. 25%

B. 21%

C. 20%

D. 22%

Answer: Option B

Solution (By JKSSB Mock Tests)

Area multiplier = 1.1² = 1.21, increase 21%.

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

20% of a number is 30. 60% of that number is:

A. 100

B. 80

C. 90

D. 60

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Number = 30/0.2 = 150; 60% of 150 = 90.

This question belongs to: Maths Percentage

Question #2

A student scored 45% marks in the first paper and 55% in the second paper. If the maximum marks in each paper are equal and he scored 250 marks in total, what are the maximum marks of each paper?

A. 225

B. 275

C. 250

D. 200

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Let max per paper = M. 0.45M + 0.55M = 1.0M = 250 → M = 250.

This question belongs to: Maths Percentage

Question #3

A number is subtracted from 40% of itself and the result is 84. Find 75% of that number.

A. 105

B. 120

C. 140

D. 90

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
x - 0.4x = 0.6x = 84 → x = 140. 75% of 140 = 105.

This question belongs to: Maths Percentage

Explore All Percentage MCQs