Question

A can do a job in 9days and b can do a work in 9/2 days.
how long will they take to complete the job together

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Answer 1

Step-by-step explanation:

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Answer 2

work done by A in one day is⅑

work done by B in one day is 1÷⁹/2

=>²/9

work that they do together in one day would be

$\frac{1}{9} + \frac{2}{9} \\ = \frac{3}{9} \\ = \frac{1}{2}$

therefore the total work done by them togetherly will be done in2 days

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