1. 
Ramu does a piece of work in 8 days. Raju works trice as fast as Ramu while Roham works five times faster than Ramu. How many days would it take all the three to complete the work together?

2. 
Find the value of ( 0.75 * 0.75 * 0.75  0.001 ) / ( 0.75 * 0.75  0.075 + 0.01)

3. 
A train takes 7 hours to travel upwards. On the return journey it manages the distance in 5 hours by increaseing the speed by 12kmph. What is the total distance travelled by the train?

4. 
An accountant divides the total by 6 instead of multiplying it by 8. What is the percentage of error that creeps into the value?

5. 
Shastri buys 20 lt of petrol for Rs.40 a litre and mixes it with 10% kerosine (Rs.20 a litre) and sells it for Rs.40 a litre. What is the total gain he makes?

6. 
Pipe A can fill a tank in 30 mins and Pipe B can fill it in 28 mins.If 3/4th of the tank is filled by Pipe B alone and both are opened, how much time is required by both the pipes to fill the tank completely?

7. 
A shop keeper earns a profit of 25% on a pair of sports shoes if he gives a discount of 25%. What % would be his profit if he gives a discount of 10%?

8. 
x% of y is y% of?
A. x
B. 2X
C. y
D. 2y 
9. 
A certain number of men can finish a piece of work in 10 days. If however there were 10 men less it will take 10 days more for the work to be finished. How many men were there originally?

10. 
Vijay has deposited a sum with a bank that gives simple interest. He expects that he would get back Rs.1120/ in 4 years or Rs.1200/ in 5 years. What was the sum that Vijay originally deposited?

11. 
A private banker offers an anually compounded interest scheme that triples an amount in 3 years. In how many years would the amount become 9 times if deposited with this banker?

12. 
Two ships move in the same direction at 50 kmph and 32 kmph respectively. A man in the slower ship observes the 15 seconds elapse before the faster ship completely passes by him. What is the length of faster ship?

13. 
How may holes of 5mm x 8mm can be made on a metal sheet of 1 metre square provided that there should be a gap of 1mm between each square?

14. 
If the price of cooking gas increases by 20%, what % of the consumption of gas be reduced by a hotel owner so that the expenditure on gas remains the same?

15. 
John spends 1/20th of his salary on schooling of this children, 1/10th on household expenses, 1/40th for his car and deposites the rest in a bank. What is the salary of the man if he deposits Rs. 50000 a month in the bank?

16. 
The population of an island increases at 4% per anuam. There is an additional annual increase of 1% of the population due to touristers who eventually settle in the island. Find the % increase in population after 2 years?

17. 
The ratio of the number of boys and girls in a school is 3:2. Out of these 10% of the boys and 25% of girls are scholarship holders. What is the % of students who are not scholarship holders?

18. 

19. 

20. 
