If x + y + z = 15, xy+ yz + zx = 75, then x+4y+z/3z is equal to : – McqOptions

MCQOPTIONS

1.	If x + y + z = 15, xy+ yz + zx = 75, then x+4y+z/3z is equal to :
A.	1
B.	0
C.	2
D.	-1
Answer» D. -1

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