A number decreased by 12% becomes 176. Original number is: MCQ with Answer and Explanation

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A number decreased by 12% becomes 176. Original number is:

A. 200

B. 210

C. 205

D. 195

Answer: Option A

Solution (By JKSSB Mock Tests)

0.88x = 176 → x = 200.

This question belongs to: Maths Percentage

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Question #1

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A number increased by 30% then decreased by 30% results in net change of:

A. 9% increase

B. 6% decrease

C. 9% decrease

D. 0%

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Correct Answer: Option C

Explanation:
1.3 × 0.7 = 0.91, 9% decrease.

This question belongs to: Maths Percentage

Question #2

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The price of sugar goes up by 30%. By what percent must a householder reduce consumption so that expenditure increases only by 5%?

A. 20%

B. 21.5%

C. 19.23%

D. 18.5%

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Correct Answer: Option C

Explanation:
1.3 × x = 1.05 → x = 1.05/1.3 ≈ 0.8077, reduction 19.23%.

This question belongs to: Maths Percentage

Question #3

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A man sells an article at 10% profit. Had he bought it at 20% less and sold it for Rs. 10 less, he would have gained 25%. Find the cost price.

A. Rs. 110

B. Rs. 100

C. Rs. 90

D. Rs. 80

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Correct Answer: Option B

Explanation:
CP=x, SP=1.1x. New CP=0.8x, new SP=1.1x-10. 1.1x-10 = 1.25×0.8x = x → 0.1x=10 → x=100.

This question belongs to: Maths Percentage

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