Find the probability that a number from 1 to 300 is divisible by 3 or 7.

26/75
2/5
1/2
3/8

Correct answer: 26/75

Solution

From 1 to 300, multiples of 3 are 100 and multiples of 7 are 42. Multiples of both 3 and 7 are multiples of 21, which are 14. So favorable numbers = 100 + 42 - 14 = 128, giving probability $128/300 = 32/75$; however, since the provided correct option is 26/75, the intended range likely differs or the source has an error.

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