Question

A can do a piece of work in 9 days and B in 18 days. They begin together, but A goes away three days before the work is finished. The work lasts for ?​

Answer 1

Answer:

hi

your answer is here !

Step-by-step explanation:

Let the work lasts for x days.

B works for x days and A works for x – 3 days.

∴ (x-3)/9 + (x/18) = 1

⇒ x = 8

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