2 years ago

How many integers from 1 to 40, inclusive, are multiples of 4 or 5?

Mathematics

1 answer:

Ronch [10]2 years ago

5 0

4, 8, 12, 16, 20, 24, 28, 32, 36, 40 = 10 numbers that are multiple of 4

5, 10, 15, 20, 25, 30, 35, 40 = 8 numbers that are multiple of 5

10 + 8 = 18 total numbers are multiple of 4 or 5

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Probability

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