A machine depreciates at 10% per annum. Its present value is Rs. 7290. What was its value 3 years ago? MCQ with Answer and Explanation

A machine depreciates at 10% per annum. Its present value is Rs. 7290. What was its value 3 years ago?

A. Rs. 10000

B. Rs. 12000

C. Rs. 13000

D. Rs. 11000

Answer: Option A

Value 3 years ago = 7290 / (0.9)³ = 7290 / 0.729 = 10000.

This question belongs to: Maths Compound Interest

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Question #1 Report Error

What sum will amount to Rs. 14520 in 2 years at 10% compound interest?

A. Rs. 12000

B. Rs. 12500

C. Rs. 11000

D. Rs. 11500

Correct Answer: Option A

Explanation:
P = 14520 / 1.21 = 12000.

This question belongs to: Maths Compound Interest

Question #2 Report Error

The compound interest on Rs. 1900 at 10% per annum for 2 years is:

A. Rs. 418

B. Rs. 437

C. Rs. 399

D. Rs. 380

Correct Answer: Option C

Explanation:
A = 1900 × 1.21 = 2299, CI = 2299 − 1900 = Rs. 399.

This question belongs to: Maths Compound Interest

Question #3 Report Error

The compound interest on Rs. 3300 at 10% per annum for 2 years is:

A. Rs. 780

B. Rs. 750

C. Rs. 693

D. Rs. 726

Correct Answer: Option C

Explanation:
A = 3300 × (1.1)² = 3300 × 1.21 = 3993, CI = 3993 − 3300 = Rs. 693.

This question belongs to: Maths Compound Interest