Math MCQ: A can do a piece of work in 20 days. He works it for 4 days and then B finish the work in 12 days. How long will it takes if both A and B works together?

A can do a piece of work in 20 days. He works it for 4 days and then B finish the work in 12 days. How long will it takes if both A and B works together?

Correct Answer: 8.5 days

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WhatsApp+91 99922 70404Math MCQ: A can do a piece of work in 20 days. He works it for 4 days and then B finish the work in 12 days. How long will it takes if both A and B works together? | Extra Education