A property decreases in value every year at the rate of 6 1/4% of its value at the beginning of the year its value at the end of 3 years was Rs.21093. Find its value at the beginning of the first year?

A property decreases in value every year at the rate of 6 1/4% of its value at the beginning of the year its value at the end of 3 years was Rs.21093. Find its value at the beginning of the first year?

A. Rs.25600.24
B. Rs.32000.50
C. Rs.18060.36
D. Rs.18600
Explanation:
6 1/4% = 1/16
x *15/16 * 15/16 * 15/16 = 21093
x = 25600.24

Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 4000 for 2 years at 10% per annum. The sum placed on simple interest is:_______?

Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 4000 for 2 years at 10% per annum. The sum placed on simple interest is:_______?

A. Rs. 1550
B. Rs. 1650
C. Rs. 1750
D. Rs. 2000