Bunuel wrote:
The ratio of zinc to copper in a certain alloy is 2 to 5. If 120 grams of copper are used, how many grams of zinc are needed to make this alloy?
(A) 20
(B) 48
(C) 180
(D) 200
(E) 300
2:5 :: x:120
Thus, x = 120/5*2 = 48, Answer must be (B)
Statistics : Posted by Abhishek009 • on 17 Sep 2021, 07:15 • Replies 3 • Views 1457
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