A can do a piece of work in 15 days and B in 20 days. How much time will they take to complete the work if they work on alternate days, starting with A ?
A). 15
B). 16
C). 17
D). 18
A wall of 100 metres can be built by 7 men or 10 women in 10 days. How many days will 14 men and 20 women take to build a wall of 600 metres ?
A). 15 days
B). 16 days
C). 17 days
D). 18 days
A can do a piece of work in 60 days. He worker for 15 days and then B alone finishes the remaining work in 30 days. The two together can finish the work in
A). 24 days
B). 26 days
C). 28 days
D). 30 days
If 12 carpenters working 6 hours a day can make 460 chairs in 24 days, how many chairs will 18 carpenters working 8 hours a day make in 36 days ?
A). 1080
B). 1180
C). 1280
D). 1380
12 men can complete a work in 6 days. 8 women can do it in 12 days. If 6 men and 8 women are employed together, work will be completed in
A). 4 days
B). 6 days
C). 10 days
D). 14 days