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

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

A. 1400

B. 1440

C. 1360

D. 1500

Answer: Option B

Solution (By JKExamLibrary)

2000 × 0.8 × 0.9 = 1440.

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. 9% decrease

C. 0%

D. 6% decrease

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Correct Answer: Option B

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

This question belongs to: Maths Percentage

Question #2

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If A's salary is 20% more than B's, by what percent is B's salary less than A's?

A. 18%

B. 20%

C. 15%

D. 16.67%

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Correct Answer: Option D

Explanation:
B less % = (20/120)×100 = 16.67%.

This question belongs to: Maths Percentage

Question #3

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Numerator of a fraction increased by 20%, denominator decreased by 10%, fraction becomes 2/3. Original fraction:

A. 3/5

B. 2/5

C. 1/2

D. 1/3

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Correct Answer: Option C

Explanation:
(1.2a)/(0.9b) = 2/3 → (4/3)(a/b)=2/3 → a/b = 1/2.

This question belongs to: Maths Percentage

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