srujanreddykarri srujanreddykarri

12-05-2020
Mathematics

contestada

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

Respuesta :

amna04352 amna04352

12-05-2020

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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