Question

in how many years will the principal be 5 times at the rate of 10% per annum simple intrest​

Answer 1

Step-by-step explanation:

By using the formula -

S. I. =P*R*T/100

We get,

Answer 2

Answer:

let principal= ₹ x

amount= ₹ 5x

interest= ₹(5x-x)= ₹ 4x

we know,

SI=principal×time×ratw of interest/100

=> 4x=x.time.10/100

=> 4x=x.time/10

=> time =4.10

=> x=40

required time is 40 years