A man spends 50% of his income. His income rises by 50% and expenditure by 20%. Percentage increase in savings is: MCQ with Answer and Explanation

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A man spends 50% of his income. His income rises by 50% and expenditure by 20%. Percentage increase in savings is:

A. 60%

B. 80%

C. 70%

D. 90%

Answer: Option B

Solution (By JKSSB Mock Tests)

Let income = 100, exp = 50, sav = 50. New income = 150, exp = 60, sav = 90. Increase = 40 on 50 = 80%.

This question belongs to: Maths Percentage

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Question #1

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A student has to secure 33% marks to pass. He gets 120 marks and fails by 12 marks. Find the maximum marks.

A. 400

B. 450

C. 500

D. 350

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Correct Answer: Option A

Explanation:
Passing marks = 120 + 12 = 132. 33% of Maximum = 132. Maximum = 132 * (100 / 33) = 400.

This question belongs to: Maths Percentage

Question #2

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Student A gets 20% marks and fails by 30 marks. Student B gets 32% marks and gets 42 marks more than passing. Find the total marks.

A. 800

B. 700

C. 500

D. 600

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Correct Answer: Option D

Explanation:
Difference in percentage = 32% - 20% = 12%. Difference in marks = 42 + 30 = 72. 12% of Total = 72. Total = 600.

This question belongs to: Maths Percentage

Question #3

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A number is increased by 15% and then decreased by 20%. The result is 276. Find the original number.

A. 250

B. 300

C. 280

D. 320

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Correct Answer: Option B

Explanation:
1.15 × 0.8 = 0.92, 0.92x = 276 → x = 300.

This question belongs to: Maths Percentage

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