Mohan can repair an Instrument in 40 hours. Ram can repair the same instrument in 30
hours. Mohan and Ram work together to repair the same instrument for 8 hours. Then,
Mohan goes away. The number of hours that Ram takes to complete the work is (in hours)
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Answer will be 30 hours mate... Hipe it helps
Phogat0021:
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mohan =1/40
ram =1/30
mohan+ram=7/120
mohan and ram together 8 hours 7/120 * 8=7/15
mohan left
7/15 *30=14
but answer was 16 is correct
14/30 work is completed.. so remaining is 1-14/30 = 16/30 ..
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