1. A sum when lent at 15% p.a. simple interest for x years amounted to 18125 rs. When the same sum was lent at 20% p.a. simple interest for (x+2)years it amounted to 25000rs. Find the sum?
a)7000
b)16000
c)12500
d)13500
2. In what time does a sum double itself at 12.5%p.a. simple interest?
a)16years
b)8years
c)10years
d)12years
3. A sum triples itself in three years at simple interest. In how many years will the same sum become nine times itself at the same rate?
a)18
b)9
c)12
d)27
4. Find the present value of 29282 rs. Payable after three years at 10%p.a. compounded interest, interst being compounded annually.
a)22000
b)20000
c)24000
d)18000
5. Amar borrows 30000rs. At 10% compound interst. He repays 20000rs. After one year . What sum should be repaid at the end of the second year such that the debt is discharged?
a)14300
b)12500
c)13750
d)15400
6. The difference between the compounded interest at 20% p.a. and simple interest at 15% p.a. on a certain sum for three years is 2363rs. Find the sum?
a)8500
b)9000
c)10000
d)8000
7. A sum of money becomes four times itself in eight years at compounded interest. In how many years will the same sum become sixteen times itself?
a)64
b)32
c)44
d)16
8. The value of machine depreciates at the rate of 10%p.a. every year. What was the value of the machine two years ago, if its present value is 24300rs.?
a)90000
b)36000
c)34000
d)30000
9. A sum invested at compounded interst, with interest being compounded annually amounts to 62720rs. in two years and 70246.46 in three years. Find the sum?
a)50000
b)48000
c)54000
d)52000
10. The compound interest on a certain sum for two years at 20%p.a. is 528. Find the simple interst for the same amount for the same period,at the same rate of interst.
a)560
b)420
c)580
d)480
11. How much more does a man get by investing 40000 at 40% p.a. compound interst, compounded half yearly, than at 40%p.a. compound interst, compounded yearly per one year?
a)2564
b)964
c)1078
d)1600
12. The difference between the simple interest received from two banks on 1250rs. for four years,is 125rs. What is the difference between their annual rates?
a)4%
b)3.5%
c)3
d)2.5%
13. Saketh borrows a sum 64000rs. at 5%p.a. compounded annually. At the end of one year, he repays a certain amount end he repays the balance amount of 35700rs. at the end of the second the year. What amount did he repay at the end of the first year?
a)34000
b)37200
c)33200
d)35700
14. A sum amounts 12480 in five years and to 13728 in eight years at simple interest. What is the sum?
a)9800
b)10400
c)10200
d)9600
15. The compound interest and the simple interest on a certain sum for two years are 1653.60 and 1560 respectively. Find the sum and the rate of interest?
a)7800, 10%
b)7800, 15%
c)6500, 10%
d)6500, 12%