Time and Work Questions

Murad can do a piece of work in 33 hours. If he is joined by Joel who is 100% more efficient, in what time will they together finish the work?

A can finish 80% of a task in 12 days and B can finish 20% of the same task in 2 days. They started the task together, but B left after 2 days and A continued to work. In how many days was the entire task completed?

A can finish 37
2
1
​
% (or
8
3
​
) of a task in 6 days and B can finish 66
3
2
​
% (or
3
2
​
) of the same task in 12 days. A and B worked together for 5 days. C alone completed the remaining task in 8 days. B and C, working together, will complete the same task in:

A can do a work in 15 days and B in 9 days. If they work on it together for 5 days, then what fraction of work is left?

A can do a work in 20 days and B in 50 days. If they work on it together for 5 days, then what fraction of work is left?

Pipes A and B can fill a tank in 18 hours and 27 hours, respectively, whereas pipe C can empty the full tank in 54 hours. All three pipes are opened together, but pipe C is closed after 12 hours. In how much time (in minutes) will the one-third of the remaining part of the tank be filled by A and B together?

3 men can finish a work in 10 days, 4 women can finish it in 12 days and 10 qualified workers can finish it in 6 days. In how many days is the work finished by 4 men, 4 women and 4 qualified workers, working together every day?

Three men do as much work as 4 boys do in 21 days. In how many days will 9 men and 2 boys complete the same work?

P, Q and R together can do a piece of work in 56 days. P and Q together can do one-fourth as much work as R alone. In how many days can P and Q together complete the entire work?

Manjeet can do a work in 18 hours. If he is joined by Jaya who is 100% more efficient, in what time will they together finish the work?

X is 25% more efficient than Y. If Y alone can make a chair in 10 days, then X alone can make the chair in how many days?

$30$ women do half of the total work in $30$ days. How many more women will be required to complete the remaining work in $10$ days?