Question

Amount to rupees 2652 in 6 years at 5% p a simple interest find the sum and find the time in which the same sum will double itself at the same rate of interest

Answer 1

let principal= 100%,
At rate of 5% for 6yrs interest earned is 30% .
so amount =130% = 2652.
100% = 2040.
Sum doubles it self means interest earned is 100% .
100%/ 5% =20 years .
so in 20years sum doubles it self.