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Question

if the sum of 7 integers is even, at most how many of these integers could be odd?

a. 3
b. 4
c. 5
d. 6
e. 7
12 years ago

Answers

Reiny
remember that the sum of any 2 odd integers are even
and the sum of 2 evens is even
e.g. 3+5=8 and 4+12=16
but the sum of an even and an odd is odd
e.g. 3+6=9

so can you reason it out?

12 years ago

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