It is possible to solve word problems when two people are doing a work job together by solving systems of equations. To solve a work word problem, multiply the hourly rate of the two people working together times the time spent working to get the total amount of time spent on the job. Knowledge of solving systems of equations is necessary to solve these types of problems.
Sample Problems (2)
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Brooks can mow a lawn in 4 hours. Jeremy could mow the same long twice as fast.
Jessica can paint a room in 14 hours. Lily could paint the same room in 10 hours.