Selected MCQ

Current Question
If a sum becomes Rs. 1210 in 2 years at CI 10%, principal is ____.
  • A. Rs. 900
  • B. Rs. 1000
  • C. Rs. 1100
  • D. Rs. 1200
Correct Answer: B
Explanation:
Reverse calculation gives 1000.
Related Question 1
A sum becomes Rs. 1210 in 2 years at 10% per annum compound interest. What is the principal?
  • A. Rs. 1000
  • B. Rs. 1100
  • C. Rs. 1200
  • D. Rs. 900
Correct Answer: A
Explanation:
1000 × (1.1)² = 1210.
Related Question 2
A sum at simple interest for 3 years becomes Rs. 6000. What is the principal?
  • A. Rs. 4000
  • B. Rs. 9000
  • C. Rs. 5000
  • D. Rs. 6000
Correct Answer: D
Explanation:
The given amount corresponds directly.
Related Question 3
A sum at simple interest for 2 years becomes Rs. 750. What is the principal?
  • A. Rs. 750
  • B. Rs. 700
  • C. Rs. 820
  • D. Rs. 940
Correct Answer: A
Explanation:
Direct relation from the given condition.
Related Question 4
A sum becomes Rs. 6690 in 3 years and Rs. 10035 in 6 years. Find principal.
  • A. Rs. 4400
  • B. Rs. 4445
  • C. Rs. 4460
  • D. Rs. 4520
Correct Answer: C
Explanation:
Linear increase gives principal.
Related Question 5
A sum becomes triple in 3 years at compound interest. In how many years will it become 9 times?
  • A. 18
  • B. 12
  • C. 9
  • D. 6
Correct Answer: D
Explanation:
Growth is exponential → 6 years.