An alloy of tin is 15% tin and weighs 20 pounds. How many pounds of tin are in the alloy?

tin can, water, drop of water @ Pixabay

What is the amount of tin in an alloy?

An alloy of tin can be 15% tin and weigh 20 pounds.

How many pounds are in the alloy?

I’ll do the math for you: 15% of 20 pounds is three and a half, which means that an alloy with 15% tin weighs about 18.75 lbs. That’s how much weight in an alloy! Fascinating, right? I didn’t know it was so easy to find out these things. It just proves that there are answers to every question if we take the time to research them!

tin, can, throw @ Pixabay

So what else can we learn from this discovery?

Well, let’s figure out how many teaspoons of tin are present in a pound by dividing 352 grams (the metric equivalent) by 60 seconds (denominator). We get .06125 teaspoons or six-tenths of one teaspoon per pound, which means that there are about one and a half teaspoons per 20 pounds.

This is great because we can now calculate how many batches of alloy this would make: One batch with 15% tin equals 18.75 lbs; divided by .06125 tsp (or six-tenths) = 131.25 batches of alloy! Isn’t math wonderful?


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