Question

An alloy of zinc and copper weighs 12 and a half 1/2 kg. If, in the alloy, the ratio of zinc and copper is 1:4, find the weight of copper in it

Answer 1

Answer:

10kg

Step-by-step explanation:

let the mass of zinc in the alloy be x. then the mass of copper will be 4x

x + 4x = 12.5

5x = 12.5

x = 2.5

we have to find 4x which is equal to 10