Question

An alloy contains 25% zinc and the rest is copper what weight of each metal is present in 40kg of that alloy

Answer 1

zinc=10kg

copper=30kg

Step-by-step explanation:

let whole be 100./.

percentage of zinc be 25./.

percentage of copper = 100-25=75./.

40kg=40000g

zinc=25./.of 40000g=10000 g=10kg

copper=(40000-10000)g=30000g=30kg