Question

1) An alloy is made of 25% zinc, 30% copper and the rest being nickel. Find the mass of nickel in 720gm of the alloy. ​

Answer 1

Answer:

324gm

Step-by-step explanation:

zinc=25%of 720

25/100×720=180gm

copper=30%of 720

30/100×720=216

nickel={alloy -(sum of copper and zinc)}

=720-(180+216)

=720-396

=324