Math, asked by deepanshu211, 1 year ago

at what rate of interest p.a. certain sum of money double itself in 5 years

Answers

Answered by jerri
2
hello Frnd

Let the principal Amount = X
Amount = 2X
Interest = Amount - Principal
= 2X - X
= X
Time = 5yrs

Rate = ?


As we know

Simple Interest = P × R/100 × T

X = X × R/100 × 5

100X / 5X = R

R = 20 %


Hence the Rate of Interest would be 20% For 5 years to make certain double.




hope it helps
#jerri
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