Price of rice reduced by 20%, allowing a person to buy 5 kg more for Rs. 120. Reduced price per kg is: MCQ with Answer and Explanation

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Price of rice reduced by 20%, allowing a person to buy 5 kg more for Rs. 120. Reduced price per kg is:

A. Rs. 4

B. Rs. 5.4

C. Rs. 3.6

D. Rs. 4.8

Answer: Option D

Solution (By JKSSB Mock Tests)

Original x, xy=120. New 0.8x(y+5)=120 → 96+4x=120 → x=6, reduced price = 4.8.

This question belongs to: Maths Percentage

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Question #1

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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 #2

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A man saves 20% of his monthly income. If his monthly expenditure increases by 25% and his income increases by 30%, his savings increase by what percent?

A. 55%

B. 50%

C. 45%

D. 40%

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Correct Answer: Option B

Explanation:
Let income=100, exp=80, sav=20. New inc=130, new exp=80×1.25=100, sav=30. Increase = 10, % = (10/20)×100 = 50%.

This question belongs to: Maths Percentage

Question #3

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

A. 0%

B. 6% decrease

C. 9% increase

D. 9% decrease

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Correct Answer: Option D

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

This question belongs to: Maths Percentage

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