Question

find the simplest interest rate at which x amount of money becomes 4 times itself in 15 years​

Answer 1

Answer:

20%

Explanation:

Here X is the principal

and 4x is the amount

so interest will be

Interest= Amount - Principal

= 4x-x

= 3x

Now

R= S.I *100/P*T

= 3x*100/x*15

R= 300/15

R=20%

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