How many positive integers less than 2018 are divisible by 20 or by 25, but not by both?

Question

How many positive integers less than 2018 are divisible by 20 or by 25, but not by both?

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Ariana 2 weeks 2021-09-13T15:46:18+00:00 1 Answer 0

Answers ( )

    0
    2021-09-13T15:47:48+00:00

    Answer:

    160

    Step-by-step explanation:

    Divisible by both 20 and 25:

    Divisible by 100

    2018/20 = 100.9

    100 multiples of 20

    2018/25 = 80.72

    80 multiples of 25

    2018/100 = 20.18

    20 multiples of 100

    Union: 100 + 80 – 20

    160

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45:7+7-4:2-5:5*4+35:2 =? ( )