Price reduced 25%, enables buying 3 kg more for Rs. 90. Reduced price/kg: MCQ with Answer and Explanation

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Price reduced 25%, enables buying 3 kg more for Rs. 90. Reduced price/kg:

A. Rs. 7

B. Rs. 6

C. Rs. 8

D. Rs. 7.5

Answer: Option D

Solution (By JKSSB Mock Tests)

Original price x, xy=90. New 0.75x(y+3)=90 → 0.75×90 + 2.25x=90 → x=10, reduced 7.5.

This question belongs to: Maths Percentage

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Question #1

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If the price of rice decreases by 20%, by what percentage can consumption be increased without changing expenditure?

A. 33.33%

B. 25%

C. 20%

D. 30%

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Correct Answer: Option B

Explanation:
Required increase = (R / (100 - R)) * 100. (20 / 80) * 100 = 25%.

This question belongs to: Maths Percentage

Question #2

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A's marks are 20% more than B's and B's marks are 20% less than C's. If A got 120 marks, C's marks are:

A. 125

B. 100

C. 110

D. 120

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Correct Answer: Option A

Explanation:
A=1.2B → B=120/1.2=100. B=0.8C → C=100/0.8=125.

This question belongs to: Maths Percentage

Question #3

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Convert the fraction 3/8 into a percentage.

A. 40%

B. 33.33%

C. 37.5%

D. 35%

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Correct Answer: Option C

Explanation:
(3 / 8) * 100% = 37.5%.

This question belongs to: Maths Percentage

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