Question

9. A can do a piece of work in 10 days and B in 20 days. They begin together but A leaves 2 days before the
Band C can do it in 120 days. A and
completion of the work. In how many days will the whole work be completed?

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Answer 1

Answer:

Step-by-step explanation:

Let the required days be x.

A works for (x - 2) days, while B works for x days.

According to the question,

x−210+x20=1

2x- 4 + x = 20

3x = 24

x = 8 days