Question

a certain sum of money at simple interest amounts to rs 13,000 in 4 years and to rs 15250 in 7 years. find the sum and the rate per cent​

Answer 1

Answer:

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:

there in these question answer is

principal=1000