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a, b, c are consecutive positive integers, and

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a, b, c are consecutive positive integers, and [#permalink] New post 06 Oct 2004, 09:23
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a, b, c are consecutive positive integers, and 0<a<b<c. is the product of these three integers divisible by 8

a) a and c are even

b) b*c is divisible by 4
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 [#permalink] New post 06 Oct 2004, 09:37
A?

1. Suff. a=2 or 4, or 6... c= 4,6,8.... b has to be one of the odd no.s

2. if b=4, c=5 and a=3, bc is divisible by 4 but abc is not divisible by 8. However, if b=7 and c=8, bc is divisble by 4 and abc is divisible by 8. Hence Insuff.
  [#permalink] 06 Oct 2004, 09:37
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