When choosing an integer m randomly from 1 to 80, what is...

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PS · Problem Solving

605-655

Divisibility/Multiples/Factors

When choosing an integer m randomly from 1 to 80, what is the probability that the product m(m+1) is divisible by 4?

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A

1/4

B

1/3

C

1/2

D

2/3

E

3/4

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