A number increased by 20% then decreased by 20% gives 192. Original number: MCQ with Answer and Explanation

A number increased by 20% then decreased by 20% gives 192. Original number:
A. 190
B. 180
C. 200
D. 210
Answer: Option C
Solution (By JKExamLibrary)
x × 1.2 × 0.8 = 0.96x = 192 → x = 200.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1 Report Error
What is 30% of 400 minus 15% of 200?
A. 100
B. 80
C. 70
D. 90

Correct Answer: Option D


Explanation:
30% of 400 = 120, 15% of 200 = 30, difference = 90.

This question belongs to: Maths Percentage
Question #2 Report Error
A dishonest shopkeeper uses 900 g weight instead of 1 kg. His profit %:
A. 10%
B. 11.11%
C. 9.09%
D. 12.5%

Correct Answer: Option B


Explanation:
Profit = (100/900)×100 = 11.11%.

This question belongs to: Maths Percentage
Question #3 Report Error
A sum of money becomes Rs. 2800 in 2 years and Rs. 3250 in 5 years at simple interest. Find the rate of interest.
A. 5%
B. 6%
C. 4%
D. 7%

Correct Answer: Option B


Explanation:
SI for 3 years = 3250 - 2800 = 450, SI per year = 150. Principal = 2800 - 2×150 = 2500. Rate = (150/2500)×100 = 6%.

This question belongs to: Maths Percentage