Problema Solution
Carlos and Sam together unpacked cartons for 3 hours at a rate of 8 cartons per hour. During that time, Carlos unpacked twice as many cartons as Sam. How many cartons did each of them unpack?
Answer provided by our tutors
The together rate of Carlos and Sam was 8 cartons/hour.
Together they unpacked 3*8 = 24 cartons.
Let
x = the number of cartons that Sam unpacked
2x = the number of cartons that Carlos unpacked
x + 2x = 24
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click here to see the equation solved for x
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x = 8 cartons
2x = 2*8 = 16 cartons
Sam unpacked 8 cartons while Carlos unpacked 16 cartons.