The alloy contains 800 grams of zinc – 60%. Added – 200 grams of zinc. What is the percentage in the new alloy?

univerkov | March 29, 2021 | education

Let’s calculate how many grams of zinc are in the original alloy:

0.6 * 800 = 480 grams.

Let’s calculate the total mass of the new alloy:

800 + 200 = 1000 grams.

Let’s calculate how many grams of zinc are in the new alloy:

480 + 200 = 680 grams.

Find out what percentage is zinc in the new alloy:

680: 1000 * 100% = 68%.

Answer: The new alloy contains 68% zinc.

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