A man can do a piece of work in 30 hours. If he works with his son then the same piece of work is finished in 20 hours. …

Three men A, B, C working together can do a job in 6 hours less time than A alone, in one hour less time than B alone an…

A complete $$\frac{7}{{10}}$$ of a work in 15 days, then he completed the remaining work with the help of B in 4 days. I…

X can do a piece of work in 24 days. When he had worked for 4 days, Y joined him. If complete work was finished in 16 da…

A and B together can complete a job in 8 days. Both B and C, working alone can finish the same job in 12 days, A and B c…

A man and a boy received Rs. 800 as wages for 5 days for the work they did together. The man's efficiency in the work wa…

A can do half of a piece of work in 1 day,where B can do full. B can do half the work as C in 1 day. The ratio of their …

A can build up a wall in 8 days while B can break it in 3 days. A has worked for 4 days and then B joined to work with A…