Question

6. A sum of money invested at a simple interest of
7% per annum amounts to 38,720 in 3 years.
What will it amount to in 4 years at 10% interest
per annum?​

Answer 1

Answer:

Rs. 44, 800

Step-by-step explanation:

Let x be the principal then

SI = P*R*T/100

38720-x = x*7*3/100

On solving

X= 32000

Required amount

32000*4*10/100

=12800

Answer 32000 + 12800 =44800