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Answer: A, C
630 = 2 x 3 x 3 x 5 x 7
We are looking for statements which are DEFINITELY TRUE.
A: B≠1 and is odd so B can be 3 and A = 210
B: One of A and B must be multiple of 3 but it can be A alone A = 18, B = 35
C: A = 30 and B = 21 the smallest difference is 9
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