2 years ago

you have 12 cards. one out of every 4 cards is faceup. the rest are facedown. how many cards are faceup

Mathematics

1 answer:

umka2103 [35]2 years ago

7 0

3 cards

1/4 = x/12 1/4 = 3/12
4 * 3 = 12
1 * 3 = 3
x = 3

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