Question

in what time will a sum of money double itself at 15% per annum​

Answer 1

Step-by-step explanation:

srry don't know

but thank for the point

Answer 2

Answer:

$6 \times \frac{2}{3} \: \: years$

Step-by-step explanation:

Let the principal = Rs p

Amount = A = 2p

Time = T years

Rate of interest = r = 15%

A = p( 1+ Tr/100)

2pp (1+ T x 15 /100)

2p/p (100 + 15T )/100

200 = 100 + 15T

200 100 15T =

100 = 15T

100/15 = T

20/3 = T

Therefore,

Required time = T

= 6 2/3 years

Hope this helps you...

:)