Selected MCQ

Current Question
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 1
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 2
If the compound interest for 2 years is Rs. 210 and the simple interest is Rs. 200, find the principal?
  • A. Rs. 1000
  • B. Rs. 2000
  • C. Rs. 1500
  • D. Rs. 2500
Correct Answer: A
Explanation:
Difference used to find the rate, then principal = 1000.
Related Question 3
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 4
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 5
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.