A number increased by 10% then decreased by 10% gives net: MCQ with Answer and Explanation

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A number increased by 10% then decreased by 10% gives net:

A. 1% decrease

B. 0%

C. 2% decrease

D. 1% increase

Answer: Option A

Solution (By JKSSB Mock Tests)

1.1 × 0.9 = 0.99, 1% decrease.

This question belongs to: Maths Percentage

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Question #1

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Office 70% men. 80% of men and 60% of women have car. % of workers with car:

A. 74%

B. 68%

C. 72%

D. 70%

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Correct Answer: Option A

Explanation:
Men with car = 56% of total, women = 18%, total 74%.

This question belongs to: Maths Percentage

Question #2

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Two successive discounts of 20% and 10% on Rs. 2000 give final price:

A. 1440

B. 1500

C. 1360

D. 1400

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Correct Answer: Option A

Explanation:
2000 × 0.8 × 0.9 = 1440.

This question belongs to: Maths Percentage

Question #3

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Exam: 10% ineligible, 60% of eligible males. 4320 males, total candidates:

A. 8000

B. 7200

C. 7500

D. 7000

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Correct Answer: Option A

Explanation:
Eligible = 0.9T, males = 0.6×0.9T = 0.54T = 4320 → T = 4320/0.54 = 8000.

This question belongs to: Maths Percentage

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