Amit and dhuban can do a piece of work 9 days and 18 days respectively .As they were could do 45% and 90% efficiency respectively.How many days wiil they complete the work together
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9/.45=20 days at 45% effectiveness for Amit
18/.90=20 days at 90% effectiveness for Bhanu
1/20 + 1/20=2/20
2/20=1/10
=10 days together at their respective effectivenesses
Hope this will help you... ✌
18/.90=20 days at 90% effectiveness for Bhanu
1/20 + 1/20=2/20
2/20=1/10
=10 days together at their respective effectivenesses
Hope this will help you... ✌
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