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jmc

prealgebra junior

Problem

Homer began peeling a pile of 44 potatoes at the rate of 3 potatoes per minute. Four minutes later Christen joined him and peeled at the rate of 5 potatoes per minute. When they finished, how many potatoes had Christen peeled?
(A)
(B)
(C)
(D)
Solution
After the minutes of Homer peeling alone, he had peeled potatoes. This means that there are potatoes left. Once Christen joins him, the two are peeling potatoes at a rate of potatoes per minute. So, they finish peeling after another minutes. In these minutes, Christen peeled potatoes,
Final answer
A