Question

An alloy consists of 30% copper, 40% zinc, and the remaining is nickel. Find the amount of nickel in
20 kilograms of the alloy. solve in word problem​

Answer 1

Answer:

30 % of copper and 40 % of zinc

so % of nickel is in alloy = 100% - ( 30 % + 40%)

= 100% - 70%

= 30 %

so nickel is 30 % of total weight of alloy

so amount of alloy is = (30 / 100) × 20

= 6 kg