a2zinterviews

13.	A person takes a loan of Rs. 200 at 5% simple interest. He returns Rs. 100 at the end of 1 year. In order to clear his dues at the end of 2 years, he would pay
	A.  Rs.105
	B.  Rs.110
	C.  Rs.115
	D.  Rs.115.50

Solution

Amount to be paid = Rs.(100+200x5x1/100 + 100x5x1/100) ‹=›Rs. 115.

14.	At what rate percent per annum will the simple interest on a sum of money be 2/5 of the amount in 10 years?
	A.  2%
	B.  4%
	C.  6%
	D.  11%

Solution

Let sum = x Time = 10 years. Then, S.I = 2x /5, Rate =(100 ×2x / x×5×10)% ‹=›4%.

15.	The simple interest on Rs. 1820 from march 9, 2003 to may 21, 2003 at 7x1/2% rate will be
	A.  Rs.22.50
	B.  Rs.27.30
	C.  Rs.28.80
	D.  Rs.29

Solution

Time = (22+30+21) days ‹=›73 days. ‹=› 1/5 year. S.I = Rs. (1820×15/2×1/5×1/100) ‹=›Rs. 27.30.

16.	At what percent per annum will a sum of money double in 16 years?
	A.  6x1/4%
	B.  5x3/2%
	C.  7x2/3%
	D.  None of these

Solution

Let Principal = P. Then,S.I = P and T = 16 yrs. Rate = (100×P/P×16)% = 6×1/4%.