Question

A certain sum amount to rs 18600 in 4 years and rs 20400 in 6 year under simple intrest. Find the sum

Answer 1

Answer:

Sum is Rs.15000

Step-by-step explanation:

Amount in 4 years= 18600

amount in 6 years= 20400

if we subtract the amount of 4 years from 6years we will get Simple interest of 2 years that is:

20400- 18600= 1800 rupees(2 year SI)

so SI of one year = 1800/2= 900 rupees

we have to find the sum or principal so, we will subtract SI of four years from amount of 4 years that is: 18600- 900×4= 18600-3600=15000 rupees