Selected MCQ

Current Question
The simple interest on Rs. 500 at 6% per annum from May 3 to July 15 is ____.
  • A. Rs. 8
  • B. Rs. 6
  • C. Rs. 4
  • D. Rs. 9
Correct Answer: B
Explanation:
Time ≈ 73 days → SI = PRT/100.
Related Question 1
If the simple interest on Rs. 50 for 2 years at 5% per annum is given. What is the compound interest?
  • A. Rs. 51.25
  • B. Rs. 52
  • C. Rs. 54.25
  • D. Rs. 60
Correct Answer: A
Explanation:
CI = 50(1.05)² − 50 = 5.125 ≈ Rs. 5.125, total ≈ 51.25.
Related Question 2
If the simple interest on Rs. 1000 for 2 years at 5% per annum is calculated, what is the interest?
  • A. Rs. 50
  • B. Rs. 75
  • C. Rs. 100
  • D. Rs. 150
Correct Answer: C
Explanation:
SI = (1000×5×2)/100 = 100.
Related Question 3
There is a 60% increase in a sum in 6 years at simple interest. What will be the compound interest on Rs. 12000 for 3 years at the same rate?
  • A. Rs. 2160
  • B. Rs. 3120
  • C. Rs. 3972
  • D. Rs. 6240
Correct Answer: C
Explanation:
Rate = 10%, CI = 12000[(1.1)³ − 1] = 3972.
Related Question 4
The simple interest on Rs. 12000 for 5 years is Rs. 7200. Find the compound interest for the same period and rate.
  • A. Rs. 3502.80
  • B. Rs. 3052.40
  • C. Rs. 3054.80
  • D. Rs. 3052.80
Correct Answer: D
Explanation:
Rate = 12%, apply the compound interest formula.
Related Question 5
The simple interest and true discount on a certain sum for a given time at a given rate are Rs. 85 and Rs. 80, respectively. Find the sum.
  • A. Rs. 1800
  • B. Rs. 1450
  • C. Rs. 1360
  • D. Rs. 6800
Correct Answer: C
Explanation:
Using the relation between SI and TD, the principal is Rs. 1360.