1)

If 1 man or 2 women or 3 boys can finish a work in 88 days, then how many days will 1 man, 1 woman and 1 boy together take to finish the same work?

**[Bank Clerks 2009]**

2)

A alone can complete a work in 6 days & B alone can complete the same work in 12 days. In how many days can A & B together complete the same work?

**[Bank Clerks 2009]**

3)

A and B can do a piece of work in 72 days . B and C can do it in 120 days. A and C can do it in 90 days. In what time can A alone do it ?

**[SSC 2011]**

4)

A takes twice as much time as B & C takes thrice as much time as B to finish a project. Working together, they can finish the project in 12 days. Find the number of days needed for A to do the project alone.

**[SSC 2011]**

5)

6 boys can complete a piece of work in 16 hrs. In how many hours will 8 boys complete the same work ?

**[Bank Clerks 2011]**

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