How long does it take a man to do a job?

A man can do a job in 15 days. His father takes 20 days and his son finishes it in 25 days. How long will they take to complete the job if they all work together? How can I improve my English writing skills? First off, the fact that you want to improve is terrific!

How many days will it take for 9 men to complete?

144 men-days = 144 men-days = k, the nonzero constant of variation for this problem. Therefore, it will take 16 days for 9 men to complete the job. A and B together complete a work in 15 days. A alone can do it in 20 days. In how many days B alone can do it? Lets solve the problem by intuitively…

How many days will A and B work together to complete work?

A can do a work in 6 days and B can do the same work in 12 days. If A and B alone did a work for 2 and 3 days respectively, in how many days will they complete the remaining work if they work together? A little over a day and a half.

Q5: A man can do a job in 15 days. His father takes 20 days and his son finishes it in 25 days. How long will they take to complete the job if they all work together? [Hotel Management, 2003] C) Approximately 6.4 days D) More than 10 days. Q6: A man can do a piece o work in 5 days, but with the help of his son, he can do it in 3 days.

How can A and B finish a job in 60 days?

A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in: Ratio of times taken by A and B = 1 : 3. The time difference is (3 – 1) 2 days while B take 3 days and A takes 1 day. If difference of time is 2 days, B takes 3 days. = 90 days.

How many men can complete a work in 12 days?

Q1: Seven men can complete a work in 12 days. They started the work and after 5 days, two men left. In how many days will the work be completed by the remaining men?

How many days A B and C working together can complete work?

7) A and B can do a work in 12 days, B and C can do the same work in 15 days and A and C can complete the work in 20 days. In how many days A, B and C working together can complete the whole work? 8) A can finish the work in 16 days while B can finish the work in 8 days. After A started the work alone, B joined him after 4 days.