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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 hurtado claudio

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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