Question

an alloy consists of 30%, 40% zinc and the remaining is Nickel find the amount of Nickel in 20 kilograms of alloy

Answer 1

30+40 is 70% so 30% remains
So nickel is 30% of 20 kgs...
$\frac{30}{100} \times 20000g = 6000g$
6kgs nickel
Pls mark brainliest and thanks for the update

Answer 2

let alloy contain 30+40=70percent
nickle contain 20g
70*x/100=20
x=20*10/7
x=200/7
x=28.57ans