Question

A sum of money becomes 27 times in 10 year at a certain ratio of

c.I. Find in how many year will it becomes 243 times?

Answer 1

27p=p(1+i)v10
1+i=3/10 power of 1+i
243p=p(1+i)vn
1+i=5/n th power of 1+i
3/10=5/n
n=50/3