Question

A and B working together can do a piece of work in days whereas B working alone can do the same work in Y days. How many days will A alone take to do the work. ​

Answer 1

Answer:

A and B together can do a work in 10 days

And B can do the same work in 15 days

A and B’s one day’s work = \frac{1}{10}

10

1

And B’s one day’s work = \frac{1}{15}

15

1

∴ A’s one day’s work = \frac{1}{10}-\frac{1}{15}=\frac{3-2}{30}=\frac{1}{30}

10

1

−

15

1

=

30

3−2

=

30

1

Hence A can do the same work in = 30 days

Step-by-step explanation:

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