In how much time would the S.I. on a certain sum be 0.56 times the principal at 20% per annual?
2.8 years
3 years
2.6 years
Data insufficent
none of these
0.56P = P×T×20100
T = 2.8 years
Question 133
In how many years, will the simple interest on a certain sum be 4.05 times the principal at 13.5% per annum ?