Time And Work
Only available for you
- If A can do a piece of work in n days, then A’s 1 day’s work = 1/n
- If A’s 1 day’s work = 1/n, then A can finish the work in n days.
- If A is thrice as good a workman as B, then:
Ratio of work done by A and B = 3:1
Ratio of times taken by A and B to finish a work = 1:3
1 A can do a piece of work in 10 days and B can do the same work in 15 days. How long will they take if both work together?
2 Anil and Alok together can do a piece of work in 6 days and Anil alone can do it in 8 days. In how many days can Alok alone do it?
3 If 12 men can finish a work in 20 days, then find the number of days required to complete the same work by 15 men:
4 A can do a piece of work in 6 days. How many days will he take to complete four such works?
5 Twenty four men can complete a work in sixteen days. Thirty-two women can complete the same work in twenty-four days. Sixteen men and sixteen women started working and worked for twelve days. How many more men are to be added to complete the remaining work in 2 days?
6 A stock of food is enough for 240 men for 48 days. How long will the same stock last for 160 men?
7 P and Q can finish a work in 30 days. They worked at it for 10 days and then Q left. The remaining work is done by P alone in 20 more days. How long will P take to finish the work alone?
8 A and B together can complete a work in 3 days. They started together but after 2 days, B left the work. If the work is completed after 2 more days, B alone could do the work in how many days?
9 A is thrice as good a workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:
