 1. On a sum of money, the simple interest for 2 years is Rs. 660,while the compound interest is Rs.696.30,the rate of interest being the same in both the cases. The rate of interest is

A.  10%                       B.  11%

C.  12%                       D.  10.5%

2.  The difference between simple interest and compound interest on Rs. 1200 for one year at 10% per annum reckoned half yearly is

A.  Rs.2.50                  B.  Rs. 3

C.  Rs. 4                      D.  Rs. 3.75

3. A sum of money at simple interest amounts to Rs.815 in 3 years and to Rs. 854 in 4 years. The sum is

A.   Rs. 650                 B.   Rs. 690

C.  Rs. 698                  D.  Rs. 700

4. How much time will it take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest?

A.  3.5 years                B.  4 years

C.  4.5 years                D.  5 years

5. Worker A takes 8 hours to do a job. Worker B takes 10 hours to do the same job. How long should it take both A and B, working together but indepently, to do the same job?

A.  2×4/9                     B.  4×4/9

C.  5×4/9                     D.  4×2/9

6. A and B together can complete a work in 12 days. A alone can complete it in 20 days. If B does the work only for half a day daily, then in how many days A and B together will complete the work?

A.  10 days                  B.  11 days

C.  15 days                  D.  20 days

7. An express train travelled at an average speed of 100 km/hr, stopping for 3 minutes after every 75 km. How long did it take to reach its destination 600 km from the starting point?

A.  6 hrs 21 min          B.   6 hrs 24 min

C.  6 hrs 27 min           D.  6 hrs 30 min

8. Sound is said to travel in air at about 1100 feet per second. A man hears the axe striking the tree, 11/5 seconds after he sees it strike the tree. How far is the man from the wood chopper?

A.   2197 ft                 B.  2420 ft

C.  2500 ft                   D.   2629 ft

9. In what ratio must rice at Rs.9.30 per Kg be mixed with rice at Rs. 10.80 per Kg so that the mixture be worth Rs.10 per Kg ?

A.  8 : 7                       B.  7 : 8

C.  8 : 9                       D.   9 : 8

10. In what ratio must be a grocer mix two varities of tea worth Rs. 60 a kg and Rs. 65 a Kg so that by selling the mixture at Rs. 68.20 a Kg he may gain 10% ?

A.  3 : 4                       B.  3 : 2

C.  3 : 5                       D.  4 : 5

11. find the wrong one in the series    864, 420, 200, 96, 40, 16, 6

A.   420           B.   200

C.   96              D.   40

12. insert the missing     121, 112, …, 97, 91, 86

A.   102           B.   108

C.   99              D.   104

13. insert the missing     7, 7, 24, 19, 9, 28, …, 8, 31

A.   20                         B.   21

C.   18                         D.   23

14. In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?

A.  2/3             B.  3/4

C.  7/19           D.  8/21

15. The probability that a card drawn from a pack of 52 cards will be a diamond or a king is

A.  2/13           B.  4/13

C.  1/13           D.  1/52 