Solution: What fraction of the yard can they mow in 1 hour if they work together?

Mike, Loui, and Joy can mow the lawn in 4, 6, and 7 hours respectively. What fraction of the yard can they mow in 1 hour if they work together? How to solve work problems?

What fraction of the yard can they mow in 1 hour if they work together?

Problem Statement: ECE Board April 1999

Vryan, Mike, and Kim can mow the lawn in 4, 6, and 7 hours respectively. What fraction of the yard can they mow in 1 hour if they work together?

Problem Answer:

After 1 hour, they already mowed 47/84 fraction of the yard.

Solution:

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