How many positive integers less than 20 are multiples of 3 but not 2? Show your work please:)

asked Jan 24, 2018 231k views

4 votes

How many positive integers less than 20 are multiples of 3 but not 2?

Show your work please:)

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1 vote

so all the multiples of 3 are...
3, 6, 9, 12, 15, 18
and of those, the ones not divisible by 2 are...
3, 9, 15

Pkumarn answered Jan 29, 2018

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