A construction company employs 60 men to build a bridge of 500 m in 30 days working 8 hours a day. If in 24 days they completed 3/5 part of work, then how many more employees should be hired to finish the work in time, working 10 hours a day?
If 9 boy working 15/2 hours a day can finish a work in 20 days, then how many days will be taken by 12 boy working 6 hours a day to finish the work, it being given than 3 boy of latter type work as much as 2 boy of he former type in the same.
If A men working A hours a day can do A units of a work in A days, then how many units of work can be completed by B men working B hours per day.
Jayant can do some work in 8 hours. Ramesh can do the same work in 12 hours. British can do the same work in x hours. All three starts working at 11:30 am, while Jayant stops working at 1:30 pm and the remaining two complete the work at 4 pm. British alone can finish the same work in how many hours?