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29 September, 14:06

A stack of index cards is numbered 1 to 50, and then shuffled and put into a box. What is the probability that 4 will be a factor of a card drawn from the box?

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  1. 29 September, 14:35
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    You have a 24% chance of drawing a card that has 4 as a factor.

    From 1 to 50, there are 12 numbers that have 4 as a factor.

    They are: 4 8 12 16 20 24 28 32 36 40 44 48

    So our chance is 12/50 or 24%,
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