Question

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

Answer 1

Answer:

The sum of money will double itself in 6 years and 8 months

Hope this helps you

Answer 2

✏Answer✏

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 }

2p= p { 1+T ×15/100 }

2p/p = { 100+15T }/100

200= 100 +15T

200- 100 = 15T

100 = 15 T

20 / 3 = T

Therefore,

Required time = T = 6 2/3 years. ✔✔

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