Two alloys contain zinc and copper in the ratio of 2 : 1 and 4 : 1. In what ratio the two alloys should be added together to get a new alloy having zinc and copper in the ratio of 3 : 1?
a. `3:5`
b. `5:7`
c. `7:5`
d. none of these

Alloys A and B contain copper and zink in the ratio 1 :3 and 3 :5 , respectively . In What ratio A and B be mixed to get a new alloy containing copper and zink in the ratio 1 :2 ?

Two alloys A and B contain copper and zinc in the ratio 7 : 2 and 5 : 3 respectively. How many kg of A and B must be melted in order to get an alloy of 44 kg containing copperand Zinc in the ratio 3 : 1?

An alloy contains only zinc and copper and they are in the ratio of 7:9. If the weight of the alloy is 8kg ,then find the weight of copper in the alloy.

An alloy contains only zinc and copper and they are in the ratio of 7:9. If the weight of the alloy is 8kg, then find the weight of copper in the alloy

An alloy of 200 gm is to contain zinc and coper in the ratio of 5 :3 . What quantity of coper to be further added in so as to make the ratio 3:5 ?

Two vessels A and B contain milk and water in the ratio 7 : 5 and 17 : 7 ,respectively. In what ratio mixtures from two vessels should be mixed to get a new mixture containing milk and water in the ratio 5 : 3 ? (A) 1 : 2 (B) 2 : 1 (C ) 2 : 3 (D) 3 : 2

Zinc and copper are in the ratio of 5:3 in 200 gm of an alloy. How much grams of copper be added to make the ratio as 3:5?

An alloy contains only zinc and copper. One such alloy weighing 15 gm contains zinc and copper in the ratio of 2 : 3 by weight. If 10 gm of zinc is added then find what amount of copper has to removed from the alloy such that the final alloy has zinc and copper in the ratio of 4 : 1 by weight.?