Reena took a loan of 1200 with simple interest for as many years as the rate of interest. If she paid 432 as interest at the end of the loan period, what was the rate of interest?
A). 6
B). 8
C). 11
D). 17
6
Let rate = R% and time = R years.
Then, (1200 x R x R)/100 = 432
12R² = 432
R² = 36
R = 6.
1. A borrow took by a man, for every 5 years it will be doubled, then what is the rate of the interest?
8. A sum of money trebles itself in 15 years 6 months. In how many years would it double itself?
9. The rate at which a sum becomes four times of itself in 15 years at S.I., will be:
10. The simple interest on a sum of money at 8% per annum for 6 ears is half the sum. The sum is :