If x + y + z = 400 and x : y : z = 1 : 1 : 2, then what is the value o – McqOptions

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1.	If x + y + z = 400 and x : y : z = 1 : 1 : 2, then what is the value of z?
A.	150
B.	200
C.	120
D.	100
Answer» C. 120

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