24 men can complete a piece of work in 16 days. The same work can be completed by 8 women in 72 days. Whereas 24 children take 32 days to complete it. If 10 men, 15 women and 24 children work together, in how many days can the work be completed? 

A 75 m long train is moving at 20 kmph. Find the time taken by the train to cross a man completely?

4 men, 5 women, and 3 children together can complete a piece of work in 16 days. In how many days can 10 women alone complete the piece of work if 10 men alone complete it in 24 days? 

10 men can complete a piece of work in 8 days. 20 women can complete the same piece of work in 6 days. In how many days 16 men and 18 women together can complete the same piece of work? 

Two train are moving in the same direction at 50 km/hr and 30 km/hr. The faster train crosses a man in the slower train in 18 seconds. Find the length of the faster train. 

P can complete a piece of work in 8 days, Q in 10 days and R in 12 days. Q and R together worked for 3 days then R was replaced by P. In how many days will the remaining work be completed? 

If the bus increases his speed by 3km/hr he will reach his destination 2 hours early. If he decreases his speed by 4km/hr he will take 5 hours extra to reach same destination.Find the distance covered by him to reach his destination. 

A train crosses a tree in 20 seconds and a man cycling at 5 kmph in the opposite direction in 18 seconds. What is the length of the trains? 

A can complete a piece of work in 16 days. A and B together can complete the same piece of work in 12 days. In how many days can B alone complete the same piece of work? 

A man can row 30 km downstream and 30 km upstream in a total of 8 hours. If the speed of the boat in still water is four times the speed of the current, then find the rate of the current. 

A boy can swim in still water at a speed of 10 km/hr. If the speed of the current is 5 kmph, find the time taken by the boy to swim 60 km downstream? 

A sailor goes 12 km downstream in 48 minutes and returns in 1 hour 20 minutes. Find the speed of the sailor in still water.

A boat sailing at the speed of X kmph covers a distance of 4.8 km downstream in 8 minutes. The same boat while sailing upstream at same speed covers the same distance in 9 minutes. What is the speed of the stream?

How long will it take to row 20 km upstream if a man can row 10 km in 10 minutes in still water and the same distance in 8 minutes with the stream.