Question

An alloy is make 200gms of Tin, 300gms of Copper and 500gms of Zinc. What is the ratio of :
a. Tin to Copper
b. Zinc to Copper
c. Tin to Zinc

Answer 1

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Answer 2

Answer:

The ratio 2:3 in 200 g of an alloy means that there are 5 parts of original substance in the alloy. Every part is 200/5=40 g.

So we have 5 parts of 40 g of the substance, or 80 g of copper and 120 g of zinc.

Then, we arre going to make a new alloy wich will contain 2 parts of the zinc.

So 120 g of zinc will make 2 parts of 60 g.

Therefore, new alloy will have 5 parts of 60 g substances, which will sum as 60x5=300 g.

The total amount of copper in new alloy will equal to 300–120=180 g.

We already have 80 g of copper, so we need to add 180–80=100g.

The answer is: 100 g of copper need to be added and you wil have an alloy with total weight of 300 g (180 g of copper and 120 g of zinc).

Step-by-step explanation:

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