Question

At what rate percent per annum.
11
times in 4 years.
(i) a sum of money becomes
10​

Answer 1

Answer:

why you ask this easy question to me

Answer 2

Answer:

Let principal = P,

Amount = 3P

Interest = 3P−P = 2P

According to the question,

2P=P×R×T100=R= 10%

Let after t year it will become double

Hence,interest=2P−P=P

P=P×10×t100=t

=10 years