Question

5. A sum lent out at simple interest becomes 4480 in 3 years and 4800 in 5 years. Find the sum and the
rate of interest.​

Answer 1

Answer:

invest- 4000 and interest each year is 160(4%)

Step-by-step explanation:

4800-4480 = 320

320 / 2 = 160 (because 2 years)

if it says 3 years its (160 * 3 = 480) 480

4480-480 = 4000(Invest)

(4000 - 100)

(    160 - x   )  

x = 160*100 == 4000x

x = 16000/4000

x = 4

Answer 2

I’ve explained 2 methods for the solution
Let me know if there’s any difficulty in understanding