Challenger App

No.1 PSC Learning App

1M+ Downloads
A certain number of men complete a piece of work in 60 days. If there were 8 men more, the work could be finished in 10 days less. How many men were originally there?

A20 men

B30 men

C40 men

D50 men

Answer:

C. 40 men

Read Explanation:

60 * x=>50(x+8) => x = 50x8 / 60-50 = 400/10 = 40 men


Related Questions:

A and B can complete a piece of work in 8 days, B and C can do it in 12 days, C and A can do it in 8 days. A, B and C together can complete it in
10 men can finish a piece of work in 10 days, whereas it takes 12 women to finish it in 10 days. If 15 men and 6 women undertake to complete the work, how many days will they take to complete it ?
Pipe P can fill 4/9 part of a tank in 28 hours and pipe Q can fill 3/5 part of the same tank in 27 hours. Both P and Q were kept open for 3 hours, then both were closed. Pipe R alone was then opened and it emptied the water in the tank in 8 hours. Pipes P, Q and R together can fill the empty tank in:
A can do a piece of work in 30 days, while B alone can do it in 40 days. In how many days can A and B working together do it?
There are two pipes in a tank. If pipes A an B is opened together the tank will be filled in 12 minutes. If pipe A a alone is opened the tank will be filled in 15 minutes if pipe B alone is opened the tank will be filled in how many minutes ?