20 men or 30 boys can do a certain job in 20 days. How long will it ta – McqOptions

MCQOPTIONS

1.	20 men or 30 boys can do a certain job in 20 days. How long will it take 6 men and 15 boys to do the same job?
A.	25 days
B.	10 days
C.	8 days
D.	6 days
Answer» B. 10 days

Discussion

No Comment Found

Related MCQs

A column of men extending 250 m in length takes one hour to march through a street at the rate of 50 paces per minutes each pace being 75 cm. Find the length of the street.
A certain number of men could complete work in 40 days. If there were 20 men more the work could be completed in 20 days. The original number of men is
A car travels 65 kms from A to B in 70 minutes and 80 km from B to C in 75 minutes. Find the average speed in km/h of the car for the whole journey?
A can type 60 pages in 15 hours. A and B can type 150 pages in 25 hours. How long will it take B alone to type 120 pages?
A can finish a work in 24 days B can finish the same work in 36 days. If they work together and finish it then out of total wages of Rs. 500 A will get
A can finish a work in 7 days B in 14 days and C in 28 days. B and C start working and are forced to leave the work after 2 days. The number of days taken by A to finish the remaining work is
A can finish a work in 20 days B can do the same work in 10 days. After A has worked for 5 days B joins A in how many days the remaining work will be finished.
A can do a work in 40 days and B can do it is 25 days. A worked at it for 8 days. In how many days B can finish the remaining work.
A can do a piece of work in 28 days. If B is 40% more efficient than A B can do the same piece of work in
A can do a piece of work in 16 days while B can do it in 12 days. With the help of C they can finish it in 6 days. In how many days can C alone do the work?