If A can complete the work in 3 days, B can complete the work in t days and both A and B can complete the work together in 9/4 days, then find the value.
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Step-by-step explanation:
A takes 3 days to complete the work.
In one day A will complete 1/3 work,
Similarly B takes 6 days to complete the work,
In one day B will complete 1/6 work
So when A and B work together they will take
1/3+1/6 work in 1 day
In 1 day both will complete 1/3+1/6=3/6 work
Whole work will be completed in 6/3 days ie 2 days
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