envycanady28 envycanady28

14-10-2019
Mathematics

contestada

My co-worker Erich is very odd. He only likes numbers that are divisible by 5. How many different last digits are possible in numbers that Erich likes?

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taniafki11 taniafki11

14-10-2019

Only 5 and 0 can be there, so there is only 2 possible last digits

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Athenalsun Athenalsun

31-12-2020

Solution:

A number is divisible by 5 if and only if it ends in 0 or 5, so there are only 2 possible last digits.

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