A sum of money is sufficient to pay A's wages for 21 days or B's wages for 28 days. The money is sufficient to pay the wages of both for
12 1/4 days
12 days
14 days
None of these
The speed of a boat in still water is 2 km/hr. If its speed upstream be 1 km/hr, then the speed of the stream is
2 km/hr
3 km/hr
1 km/hr
A and B can together do a piece of work in 15 days. B alone can do it in 20 days. A alone can do it in
30 days
40 days
45 days
60 days
If 25 men can weave 120 metres of cloth in a day,how many metres of cloth can be woven by 35 men in a day?
168m
146m
135m
128m
If A can finish a piece of work in 18 days, then A's 1 day's work = ?
9
6
1/18
1/9
A train running at the rate of 36 km/hr passes a standing man in 8 seconds. The length of the train is
45 metres
280 metres
80 metres
48 metres
A can do a piece of work in 25 days and B can finish it in 20 days. They work together for 5 days and then A goes away. In how many days will B finish the work?
11 days
15 days
18 km per hour = ________ m/sec
5 m/sec
9 m/sec
180 m/sec
2 men and 3 women can finish a piece of work in 10 days, while 4 men can do it in 10 days.3 men and 3 women will finish it in
6 days
10 days
8 days
If 15 women can make 150 flowers in a day,how many flowers are made by 40 women in a day?
300
400
350
450