A amount doubles itself in 15 years. what is the rate of interest?
A amount doubles itself in 15 years. what is the rate of interest?
Answer/Solution
20/3 %
Steps/Work
let amount be x & rate of interest be r% annual then
(2x-x)=(x*15*r)/100
=> 15r = 100
=> r=20/3 %
ANSWER:A
(2x-x)=(x*15*r)/100
=> 15r = 100
=> r=20/3 %
ANSWER:A