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GMAT WORD PROBLEM: If 2a + 5b + 7c = even number. a, b, c are digits. Then b can not be:
Wednesday 23 March 2016, by
If 2a + 5b + 7c = even number.
a, b, c are digits
c is an odd number
c / b is greater than 1
Then b can not be:
a) 7
b) 1
c) 9
d) 4
e) c and d
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