Time and Work Dual Variable Timing
Time and Work Dual Variable Timing
#### P and Q can do a job in 3 days. Q and R can do the same job in 9 days, while R and P can do it in 12 days. In how many days the job will be finished when P, Q and R working together.
1. [x] 72/19 days
2. [ ] 83/10 days.
3. [ ] 61/3 days.
4. [ ] 67/4 days
#### E and F are two friends working together to finish a work in 24 days and E alone can do the same work in 36 days. In how many days can F alone complete the work?
1. [ ] 36 days
2. [ ] 24 days
3. [x] 72 days
4. [ ] 48 days
#### If 12 men or 18 boys can build a wall in 48 days, then how long will 6 men or 9 boys build the wall?
1. [ ] 48 days
2. [x] 96 days
3. [ ] 64 days
4. [ ] 72 days
#### Akash can reap a field in 45 days and Vishal is 200% more expert than Akash to reap the field, then find total time taken to reap the field by Vishal.
1. [x] 15
2. [ ] 20
3. [ ] 22
4. [ ] 25
#### Two brothers(younger and older) can do a piece of work in 70 and 60 days respectively. They began to work together, but the younger brother leaves after some days and the older brother finished the remaining work in 47 days. After how many days did the younger brother leave?
1. [ ] 14 days
2. [ ] 16 days
3. [ ] 11 days
4. [x] 7 days
