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If a,b, and c are integers, what is the value of a?

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If a,b, and c are integers, what is the value of a?

1) (a-7)(b-7)(c-7)=0
2) bc=18

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Statement 1) if (a-7)(b-7)(c-7) = 0 and a,b,c are all integers then either of a, b or c can be 7 Not sufficient

Statement 2) bc = 18 Does not help answer the question

Let us combine both the statments. if b*c = 18 and b,c are integers this clearly implies that either of b or c cannot be a mulitple of 7. Hence it can be concluded that a = 7. 

Combining both the statements helps us answer the question.  Hence C

answered Jun 15, 2014 by Senior Associate (475 points)
selected Jun 15, 2014 by
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Jyotsna Mehta

Indian School of Business, Co'18

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