Question

A tank can be filled in 22 and a fifth minutes. What fraction of it will be filled in 21 min
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Answer 1

I believe the answer is about 95 percent.

Explanation:

The reason for this answer is because as said 22 and a fifth would mean the tank is full. This means I set up a proportion. What I did was...

22 1/5 over 100 = 21 over x

Now: I do 21 multiply by 100 divided by 22 1/5 to get the answer

What I just wrote is the rule of proportions

Finally, after doing all of that, the answer I got was 94.59459459, but I rounded to the answer of 92 percent.

Answer 2

95% of the tank should be filled