Asked by murdoc
A big box can hold 12 marbles and a small box can hold 5 marbles. There area total of 99 marbles. How many big boxes are there?
Answers
Answered by
PsyDAG
There are two unknowns: big and small boxes. Need to guess one.
However, if there are 3 small boxes, there would be 7 large boxes.
(12*7) + (3*5) = 99
However, if there are 3 small boxes, there would be 7 large boxes.
(12*7) + (3*5) = 99
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