Question

Venkat lends a sum P at r% compound interest compounded every moment for ten years. It becomes "a" times P after ten years. What is the annual interestrate? (Assume that a = e²)(options)1. 100%2. 20%3. 40%4. 200%(please briefly explain the solution)​

Answer 1

Answer:

one at 6%. If the total annual income is Rs. 106. What is the money lent at each rate (consider simple interest)?

8 % of Rs.1550 = Rs.124

6 % of Rs.1550 = Rs.93

Given total annual income = Rs.106

Use mixture and alligations here

Now 13 + 18 = 31

31 parts = Rs.1550

So 1 part = Rs.50

13 parts = Rs.650

18 parts = Rs.900

I hope it will help you. You can ask if there is any doubt in my explanation.

Thank you