An alloy contains 40 percent of copper and 32 percent of nickel and rest zinc. Find the mass of zinc in 1 kg of alloy?
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Step-by-step explanation:
I will assume you have 100% of mass, and mean mass, so 40% + 32% = 72%, leaving 28% for zinc, and 28% of a kg is 0.28 kg.
Answered by
2
Answer:
Step-by-step explanation:
in 1kg of alloy weight of copper = 40% = 400g
in 1kg of alloy weight of nickel = 32% = 320g
Then mass of zinc = 1000g - (400g+320g)
=280g
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