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if 2x+y=16 , x+2z=14 , and 2y+z=12 find ...

if 2x+y=16 , x+2z=14 , and 2y+z=12 find the arithmetic mean of x, y and z.

A

`8/3`

B

`11/3`

C

`13/3`

D

`14/3`

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The correct Answer is:
D
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ENGLISH SAT-PRACTICE TEST -MATH TEST (WITH CALCULATOR)
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