It takes four workers four and a half days to build a little bridge over a stream.How long would it take two workers to build the same bridge at the same rate?

A house takes eight hours to be built by four men. How much time would it take one man to build it?

Two groups of workers are painting a bridge in the bay. The first group is responsible for painting the north side of the bridge, and the second group is responsible for painting the south side of the bridge. The first group has already painted 5 kilometers of the bridge and is painting 1 additional kilometer per day. The second group has already painted 3 kilometers of the bridge and is painting 3 additional kilometers per day. After a while, the two groups will have painted the same amount of the bridge. How much of the bridge will each group have painted? How long will that take?

If a wall is built in ten hours by 8 men how many hours will it take four men to build it?

It takes five people four hours to paint a fence.How long would it take ten people to paint the same fence at the same rate?Remember

A boat takes 2 hours to move downstream and 3 hours to move upstream between two fixed points in a river. What is time taken by boat to cover one side journey in still water