A number is increased by 20% and then decreased by 15%. The resulting number is 204. Find the original number. MCQ with Answer and Explanation

A number is increased by 20% and then decreased by 15%. The resulting number is 204. Find the original number.

A. 200

B. 190

C. 180

D. 210

Answer: Option A

1.2 × 0.85 = 1.02, 1.02x = 204 → x = 200.

This question belongs to: Maths Percentage

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

Question #1 Report Error

Difference between a number and its 3/5 is 300. 20% of that number:

A. 120

B. 150

C. 100

D. 180

Correct Answer: Option B

Explanation:
x - 0.6x = 0.4x = 300 → x = 750, 20% = 150.

This question belongs to: Maths Percentage

Question #2 Report Error

A number is increased by 40% and then decreased by 40%. If the resulting number is 84, find the original number.

A. 110

B. 100

C. 120

D. 90

Correct Answer: Option B

Explanation:
1.4 × 0.6 = 0.84, 0.84x=84 → x=100.

This question belongs to: Maths Percentage

Question #3 Report Error

What percentage of 80 is 16?

A. 15%

B. 25%

C. 20%

D. 10%

Correct Answer: Option C

Explanation:
(16 / 80) * 100 = 20%.

This question belongs to: Maths Percentage