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Ravi and Kumar are working on an assignment. Ravi takes 6 hours to type 32 pages on a computer, while Kumar takes 5 hours to type 40 pages. How much time will they take, working together on two differ

Answer»

8 hours 15 minutes



NUMBER of pages typed by RAVI in 1 hour = 32/6 = 16/3 .
Number of pages typed by Kumar in 1 hour = 40/5 = 8.
Number of pages typed by both in 1 hour = ( 16/3 + 8 ) = 40/3 .
Therefore TIME taken by both to type 110 pages = ( 110 x 3/40 ) hours
= 8 hours 15 minutes.



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