Question

Brass is an alloy of zinc and copper. If 30% of the content is zinc, find the weight of zinc and copper in 300 grams of brass.​

Answer 1

Answer:

Zinc=90g Copper=210g

Step-by-step explanation:

let the total alloy be 100%

then, percentage of copper=total percentage-percentage of zinc

=100-30=70%

we know

(given mass/total mass)×100=percentage

so, given mass=(percentage×total mass)/100

mass of zinc=(30×300)/100=90g

mass of copper=(70×300)/100=210g

I hope this helped. Lemme know if it's incorrect.