Question

A certain sum of money at simple interest amounts to ` 1,300 in 4 years and to

` 1,525 in 7 years. Find the sum of money.

Answer 1

principal +interest for 4year =1300 .(.1)
principal +interest for 7 year =1525 ....(2)
substract
Then for 3year =225
1year = 75
4 year interest = 75×4 = 300

subtract from (1)

1300 -300 =1000

principal = 1000 ....

hope it helps you ☺

Answer 2

Answer:

Step-by-step explanation:

principal +interest for 4year =1300 .(.1)

principal +interest for 7 year =1525 ....(2)

substract

Then for 3year =225

1year = 75

4 year interest = 75×4 = 300

subtract from (1)

1300 -300 =1000

principal = 1000 ....

a