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If k=x-y + 2z where -2 le x le 1, -1 le ...

If k=x-y + 2z where `-2 le x le 1, -1 le y le2` and `3 le z le 6` then which one of the following is correct ?

A

`0le k le9`

B

`5le k le11`

C

`2le k le 14`

D

`2le k le 11`

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