Question

in what time will the interest on a sum equal half the money at the rate of 10%

Answer 1

Given

Rate=10%

Let assume sum=100

Then interest =50 (according to the question)

(taking simple interest case, (you didn't mention any thing about type of interest))

So as we know

Si= pxrxt /100

P=100 (assumed)

Si=50(ATQ)

R=10%

50=100x10xt/100

50=10xt

T=50/10

T=5yrs


You can solve with x also


Let assume sum=x

Interest =x/2 (ATQ)

Si=pxrxt/100

X/2 = X x 10 x t/100

X/2 =X x t/10

10X/2 = X x t

5x=X x t

5x/x =T

T=5yrs
This is ur ans hope it will help you in case of any doubt comment below

Answer 2

Step-by-step explanation:

Rate = 10%

x+x×10/100

2x=10/100

x=10/2

x=5

hense, the time is : 5years