A can do 1 upon 3 of a work in 5 days and B can do 2 by 3 of the work in 10 days in how many days both A and B can do together the whole work
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one day work of A=1/3÷5 = 1/15
one day work of B=2/3÷10 = 2/30 = 1/15
work complete in one day ,if they work together= 1/15 +1/15 = 2/15
total days will be taken by A and B =1÷ 2/15 =15/2 =7.5 days
one day work of B=2/3÷10 = 2/30 = 1/15
work complete in one day ,if they work together= 1/15 +1/15 = 2/15
total days will be taken by A and B =1÷ 2/15 =15/2 =7.5 days
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