Mathmetics

ISBT Mathmetics for all banking PO,Clerk,IBPS PO,Railway,SSC,IAS,OAS Exams

Q11.	A,B,C can do a  work in 36,54 and 72 days respectively.They started work together but A and B left the work 8 and 12 days before completion of the work respectively. Find the total number of days which the work has been completed ?

1)	15	2)	18
3)	24	4)	30
5)	None of these

Q12.	A and B can do a work together  in 12 days while B and C together can do the same work in 15 days. If A is twice good work as C then, in how many days C can alone do the same work ?

1)	30 days	2)	36 days
3)	45 days	4)	60 days
5)	None of these

Q13.	6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days. In how many days 15 men and 20 boys can do the same work ?

1)	4 days	2)	5 days
3)	6 days	4)	7 days
5)	None of these

Q14.	10 women can complete a work in 7 days and 10 children take 14 days to complete the work. How many days will 5 women and 10 children take to complete the work ?

1)	3	2)	5
3)	7	4)	Can't be determined
5)	None of these

Q15.	A can do a piece of work in 4 hours; B and C together can do it in 3 hours, while A and C together can do it in 2 hours. How long will B alone take to do it ?

1)	8 hours	2)	10 hours
3)	12 hours	4)	24 hours
5)	None of these

Q16.	Alok alone can do a piece of work in 6 days and Barun alone in 8 days. Alok and Barun undertook to do it for Rs. 3200. With the help of Chinmay, they completed the work in 3 days. How much is to be paid to Chinmay ?

1)	Rs. 375	2)	Rs. 400
3)	Rs. 600	4)	Rs. 800
5)	None of these

Q17.	Twelve men complete a work in 9 days. After they have worked for 6 days, 6 more men join them. How many days will they take to complete the remaining work ?

1)	2 days	2)	3 days
3)	4 days	4)	5 days
5)	None of these

Q18.	A certain number of men can to finish a work in 30 days. If 20 men leave the the work , the work would taken 15 days more. How many men are there originally ?

1)	40	2)	48
3)	50	4)	60
5)	None of these

Q19.	A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:

1)	20 days	2)	22 .5 days
3)	25 days	4)	30 days
5)	None of these

Q20.	A fort is provisioned for 32 days for some soldier. After 4 days, a reinforcement of 150 soldiers arrived & the food will now last for 21 days only. How many soldiers were there in the fort in the begining ?

1)	350	2)	400
3)	450	4)	420
5)	None of these