A certain shade of gray paint is obtained by mixing 3 parts of white paint with 5 parts of black paint. If 2 gallons of the mixture is needed and the individual colors can be purchased only in one-gallon or half- gallon cans, what is the least amount of paint, in gallons, that must be purchased in order to measure out the portions needed for the mixture?
(A) 2
(B)
(C) 3
(D)
(E) 4
OA after few posts.
Please explain the working.
(A) 2
(B)
(C) 3
(D)
(E) 4
OA after few posts.
Please explain the working.
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