A machine depreciates 10% per year. Its value after 1 year if purchased for Rs. 50,000 is: MCQ with Answer and Explanation

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A machine depreciates 10% per year. Its value after 1 year if purchased for Rs. 50,000 is:

A. 47,000

B. 45,000

C. 44,000

D. 46,000

Answer: Option B

Solution (By JKSSB Mock Tests)

Value = 50,000 × 0.9 = 45,000.

This question belongs to: Maths Percentage

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Question #1

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A man spends 30% on rent, 20% of the remainder on food, and 25% of the next remainder on education. If he saves Rs. 5460, find his monthly income.

A. Rs. 12000

B. Rs. 13000

C. Rs. 12500

D. Rs. 13500

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Correct Answer: Option B

Explanation:
Rent 30%, left 70%. Food 20% of 70%=14% of income, left 56%. Education 25% of 56%=14% of income, left 42% = 5460 → income = 5460/0.42 = 13000.

This question belongs to: Maths Percentage

Question #2

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What percent of 80 is 20?

A. 15%

B. 30%

C. 20%

D. 25%

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Correct Answer: Option D

Explanation:
(20/80) × 100 = 25%.

This question belongs to: Maths Percentage

Question #3

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28% of 500 is:

A. 140

B. 150

C. 120

D. 130

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Correct Answer: Option A

Explanation:
0.28 × 500 = 140.

This question belongs to: Maths Percentage

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