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21 April, 15:54

A box contains twenty cards numbered 1 through 20. One card is to be randomly drawn from the box.

What is the probability that the card drawn will show a multiple of 6, a multiple of 7, or a multiple of 8?

A. 1/2

B. 1/3

C. 7/20

D. 1/2

+5
Answers (1)
  1. 21 April, 16:03
    0
    There are three multiples of 6: 6, 12, 18.

    There are two multiples of 7 and 8 each: 7, 8, 14, 16.

    3+4=7, so the answer is 7/20 or C.
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