vitaliyGMAT wrote:
Bunuel wrote:
If m and n are integers, are they consecutive numbers?
(1) mn + 1 is even.
(2) mn < m^2 + m
(1) mn + 1 is even.
(2) mn < m^2 + m
I have another thoughts. Please correct me if i'mwrong.
(1) mn + 1 is even.
mn = odd m-odd, n - odd sufficient.
(2) mn < m^2 + m
n < m + 1 ----> n - m < 1 and m - n > -1
Because n and m are integers we have only one possible soluion n - m = 0 or n = m Sufficient.
Answer D
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