The value of a machine depreciates at 10% per annum. If its present value is Rs. 64,800, what was its value 2 years ago? MCQ with Answer and Explanation

Question

The value of a machine depreciates at 10% per annum. If its present value is Rs. 64,800, what was its value 2 years ago?

A. Rs. 85,000

B. Rs. 90,000

C. Rs. 75,000

D. Rs. 80,000

Answer: Option D

Solution (By JKSSB Mock Tests)

Value 2 yrs ago = 64800 / (0.9×0.9) = 64800/0.81 = 80,000.

This question belongs to: Maths Percentage

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Question #1

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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. 600

B. 500

C. 700

D. 800

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Correct Answer: Option A

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 #2

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If the cost price of 12 articles is equal to the selling price of 10 articles, what is the profit percent?

A. 15%

B. 20%

C. 25%

D. 18%

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Correct Answer: Option B

Explanation:
Let CP of 1 article = Re.1. CP of 12 = 12, SP of 10 = 12 → SP of 1 = 1.2, profit% = 20%.

This question belongs to: Maths Percentage

Question #3

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40% failed in Physics, 30% in Chemistry, 20% in both. % passed in both:

A. 30%

B. 40%

C. 60%

D. 50%

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Correct Answer: Option D

Explanation:
Failed at least one = 40+30-20=50%, passed both = 50%.

This question belongs to: Maths Percentage

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