For a CTD of Rs. 10 per month a bank gives Rs. 761 after 60 months. What sum is given by this bank for a CTD of Rs. 40 after 5 years?
For a CTD of Rs. 10 per month a bank gives Rs. 761 after 60 months. What sum is given by this bank for a CTD of Rs. 40 after 5 years? Correct Answer 3,044 Rs.
Formula used:
Simple Interest = (P × R × T)/100
Where, P = Principal
R = Rate
T = Time
Concept used:
1 months = 1/12 yreas
60 months = 60 × 1/12 yreas = 5 years.
Calculation:
According to the question:
If he deposit Rs. 10 per month, then after 1 year total deposit = Rs. 10 × 12 = Rs. 120
Interst gained = 761 - 120 = Rs. 64
Interest = (P × R × T)/100
⇒ 641 = (120 × 5 × R)/100
⇒ R = 641/6% per annum
Again,
If If he deposit Rs. 40 per month, then after 1 year total deposit = Rs. 40 × 12 = Rs. 480
Interest = (P × R × T)/100
⇒ I = (480 × 5 × 641)/6 × 100 = Rs. 2564.
Now, Amount after 5 years = Rs. 2564 + Rs. 480 = Rs. 3044
∴ The Sum gained after 5 years is Rs. 3044.