Question

If A and B can do work in 10 and 15 days respectively.If A starts on the work and both work alternative days after day, in how many days will the work be completed.​

Answer 1

Answer:

19 days

Step-by-step explanation:

A can complete the work in 10 days

B can complete the work in 15 days

Now , they wirk on alternate days.

therefore as soon as 10 days of A or 15 days of B are completed the work will be finished.

So,

ABABABABABABABABABA

So adding these we get a total of 19 days.

Hope it helps