Question

the compound interest when principal Rs 3000 rate 5% per annum ans time=2 yeara is

Answer 1

C. I. = Amount - principle
Amount = p(1+r/100) ke power n where n = no. of years
so, 3000 ( 1+ 5/100 ) ke power 2
=3000 * 105/100 * 105/100
=3307.5
C. I. = a-p
= 3307.5 - 3000
= 307.5
307.5 is answer.