Question

4e) A can do a piece of work in 8 days and Bcan do it in 16 days.
Both of them start to work together but A left after 2
days.
How much work did they do in 2 days?

Answer 1

Answer:

10 days is the right answer

Step-by-step explanation:

A can do a piece of work 8 days and B can do in 16 days . Both start to work together but A left after 2 days . how much did they work in 2 days? How long would B alone take to finish the remaining work?

Solution: A does (1/8)th in 1 day and B does (1/16)th in 1 day.

In the first 2 days, A and B did (2/8)+(2/16) or (4/16)+(2/16) = 6/16 or 3/8th.

The remaining (5/8)th of the work will be done by B alone in (5/8)/(1/16) = 10 days. Answer