If k=x-y+2z where -2 \leq x \leq 1,-1\leq y\leq 2 and 3 \leq z \leq 6, then which one of the following is correct ? [2015 CDS-II]

UPSC 2015 CDS II Math Paper

Question : 20 of 100

Marks: +1, -0

If k=x−y+2z where −2≤x≤1,−1≤y≤2 and 3≤z≤6, then which one of the following is correct ?

[2015 CDS-II]

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