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divisor of 2 r and 2 s

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divisor of 2 r and 2 s

by sanju09 » Thu May 06, 2010 5:42 am
If 3 is the greatest common divisor of positive integers r and s, what is the greatest common divisor of 2 r and 2 s?
(A) 2
(B) 3
(C) 4
(D) 6
(E) 8
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by liferocks » Thu May 06, 2010 5:59 am
it should be 2*3=6

Ans option D
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