Question

at what rate the sum of money will become 3 times the principal in 10 years​

Answer 1

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