Question

A sum is being lent at 20% p.a compound interest. What is the ratio of amounts of 4 years to 5 years?​

Answer 1

refer to the attachment

Answer 2

Answer:

Let sum =Rs. 100

R=20%

Time= 4 and 5 years

Now Si= 100 × 20× 4/100=80 then

Amount= Rs. 180

Si= 100 ×20×5/100

Amount=Rs. 110

Ratio = 29/18 : 29/11 18 : 11

Anwer = 18 : 11