Question

an alloy is to contain Copper and Zinc in the ratio 9 : 4 find the quantity of zinc to be melted with 12/5 kg of copper to get the desired alloy.

Answer 1

X=12/5x9x4/1

X=16/15

X= Quantity of zinc to be melted=

1. 1/15

Answer 2

Step-by-step explanation:

Alloy Ratio = 9:4

Copper = 24 kg

9/4 = copper/zinc

9x/4x= 24/y

9x=24

x= 24/9

zinc= 4x = 4*24/9

zinc= 32/3 kg