Question

Find after how many years will a sum triple itself at the rate of 8%per annum. How many years

Answer 1

Step-by-step explanation:

Let principal be x

We are given that A certain sum of money triples itself in 8 years.

So, Amount = 3x

Interest = Amount - Principal =3x-x=2x

Time = 8 yeras

Let rate of interest be r

SI = \frac{P \times R \times T}{100}SI=100P×R×T

SI = Simple interest

P = Principal

T= Time

R = rate of interest

2x= \frac{x \times r \times 8}{100}2x=100x×r×8

200= r \times 8200=r×8

r=25%r=25

Answer 2

Answer:

rate of interest = 25%

r= 25