Question

1. In how much time will a sum become double at 12% pa. simple interest?

2. In how many years will 37500 amount to 9000 at 4% p.a. simple interest? ​

Answer 1

Answer:

Answer 1 :- 8 1/3 years

Answer 2:- 5 ..

Step-by-step explanation:

Given :- sum is double

To find :- time

solution :-

Amount = double

let principle be X

Then amount = 2 x

interest = 2x-x= x

I = PRT/ 100

= x = X× 12% × T

100

Time = 100/2 = 8 1 years ...

3

hence, time is 8 1/3 years..

Answer 2 :- we know that

simple interest = principal × time period × rate of interest / 100

= 1500=7500×Y×4

= 75×Y×4= 1500

= Y = ( 1500/75×4 )

= Y = 20 5 = 5 answer..

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