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A number is selected at random from 1 through 100, inclusive, What is the probability that the number

(a) is a perfect square

(b) is a multiple of 3

Thanks!!!

Vanilla Dec 18, 2020

Guest · Answer 1 · 2020-12-18T01:13:56

1- 100 100 choices

1 4 9 16 25 36 49 64 81 100 are the perfect squares 10 out of 100

Multiple of 3 there are 33 3 - 99 33 out of 100

Guest · Answer 2 · 2020-12-18T01:56:26

1 3 4 6 9 12 15 16 18 21 24 25 27 30 33 36 39 42 45 48 49 51 54 57 60 63 64 66 69 72 75 78 81 84 87 90 93 96 99 100 >>Total = 40 such numbers.

Probability = 40 / 100 =2 / 5

Vanilla · Answer 3 · 2020-12-18T02:10:27

Thanks!!!

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