MathDB
Alex, Beth, and Carl rake a lawn

Source: 2014-2015 SDML Middle School 1b Problem 6

August 28, 2016

Problem Statement

Yesterday, Alex, Beth, and Carl raked their lawn. First, Alex and Beth raked half of the lawn together in 3030 minutes. While they took a break, Carl raked a third of the remaining lawn in 6060 minutes. Finally, Beth joined Carl and together they finished raking the lawn in 2424 minutes. If they each rake at a constant rate, how many hours would it have taken Alex to rake the entire lawn by himself?
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