Selected MCQ

Current Question
A sum doubles in 5 years. What will it amount to in 15 years?
  • A. 7 times
  • B. 10 times
  • C. 15 times
  • D. 20 times
Correct Answer: C
Explanation:
Tripling period relation.
Related Question 1
Value of the plant depreciates 10% annually. Find the present value after 2 years, given the initial amount.
  • A. Rs. 8000
  • B. Rs. 10000
  • C. Rs. 18000
  • D. Rs. 8100
Correct Answer: D
Explanation:
Value = P(0.9)².
Related Question 2
The principal that amounts to Rs. 4913 in 3 years at 6¼% per annum compound interest is ____.
  • A. Rs. 3096
  • B. Rs. 4076
  • C. Rs. 4085
  • D. Rs. 4096
Correct Answer: D
Explanation:
Using the compound interest formula, principal = 4913 / (1.0625 ) ) )³ = 4096.
Related Question 3
If a sum amounts to Rs. 1331 in 3 years at 10% compound interest, principal is ____.
  • A. Rs. 900
  • B. Rs. 1000
  • C. Rs. 1100
  • D. Rs. 1200
Correct Answer: B
Explanation:
1000 × (1.1) ) )³ = 1331.
Related Question 4
A sum of money doubles itself in 5 years at simple interest. What is the rate of interest?
  • A. 10%
  • B. 20%
  • C. 25%
  • D. 40%
Correct Answer: B
Explanation:
Doubling ⇒ SI = principal → rate = 100/5 = 20%.
Related Question 5
If Rs. 17400 amounts to Rs. 1783.50 interest in 2 years, find the rate?
  • A. 8%
  • B. 6%
  • C. 4%
  • D. 5%
Correct Answer: D
Explanation:
Using the CI formula gives an approximation. 5%.