To pack 100 pairs of shoes into cases that each holds 20 shoes, then how many cases do we need?
- 5
- 10
- 15
- None of these
Explanation
Each pair of shoes consists of 2 shoes, so 100 pairs of shoes equals:
Each case holds 20 shoes, so to find how many cases are needed:
200/20 =10 cases
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- None of these
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