If y and z are integers, is y(z + 1) odd?
1. y is odd
2. z is even
1. y is odd
2. z is even
Q Stem : IS y(z + 1) odd ?
Only when y – Odd and Z+1 is Odd i.e. Z – Even, we can get the required.
Stmt 1) Insuff as no info on Z
Stmt 1) Insuff as no info on Y
Together – Suff.
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