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6)

16 children and 24 men complete a certain work in 18 days. If each child takes twice the time taken by a man to finish the work, in how many days will 24 men finish the same work?

7)

Ayesha can complete a piece of work in 16 days. Amita can complete the same piece of work in 8 days. If both of them work together, in how many days can they complete the same piece of work?

**[Indian Bank (PO), 2010]**

8)

P can complete a work in 12 days working 8 hours a day. Q can complete the same work in 8 days working 10 hours a day. If P and Q work together, working 8 hours a day, in how many days can they complete the work?

**[LIC (AAO), 2005]**

9)

Subhash can copy 50 pages in 10 hours, Subhash and Prakash can copy 300 pages in 40 hours. In how much time can Prakash copy 30 pages?

10)

A and B together can do a piece of work in 5 days and 'A' alone can do it in 8 days. 'B' alone can do same piece of work in

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