Acan complete a work in 15 days and Bcan complete same work in 18 days. Find the number of days take to complete the same work by together.
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Step-by-step explanation:
In 1 day A can do 1/15 of work
In 1 day B can do 1/18 of work
In 1 day both A and B can do=\frac{1}{15}+\frac{1}{18}
=
The work will be completed by them in 90/11 days
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