A and B can do a work in 5 days and 10 days respectively. A starts the work and B joins him after 2 days. In how many days can they complete the remaining work?
A). 1 day
B). 2 days
C). 3 days
D). 4 days
Two pipes X and Y can separately fill a cistern in 18 and 24 hours respectively. If they are turned on alternately for one hour each, how long will it take to fill the cistern?
A). 20 hours 30 min
B). 24 hours
C). 18 hours 30 min
D). 16 hours
If 12 men and 16 boys can do a piece of work in 5 days and 13 men together will 24 boys can do it in 4 days. Compare the daily work done by a man with that of a boy.
A). 4:3
B). 2:1
C). 1:2
D). 2:5
Some persons can do a piece of work in 12 days. Two times the number of these people will do half of that work in?
A). 3 days
B). 4 days
C). 6 days
D). 12 days
A and B can do a piece of work in 30 days, while B and C can do the same work in 24 days and C and A in 20 days. They all work together for 10 days when B and C leave. How many days more will A take t
A). 6 days
B). 12 days
C). 18 days
D). 24 days