Q.1) Ramesh can do a piece of work in 10 hours and Suresh can do the same work in 15 hours. How long will they take to do the same work if they work together?
Q.2) Ramesh can do a piece of work in 12 Hours. With the help of Suresh he completes 3/5 of that work in 4 hours. In what time could Suresh do the same work alone?
Q.3) There are 2 taps in a cistern. The first tap can fill 4/5th of the tank in 3 hours and the second tap can fill half of the tank in 2 hours 30 minutes. If both the taps are open together, then in how much time 7/10th of the tank will be filled.
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