Question

There are n gallons of oil in a tank. Then m gallons of oil are used. Write the percent of oil that remains in terms of m and n. What percent was used?

Answer 1

The percent of oil that remains in terms of m and n is (n - m)/n × 100

The percentage that was used is m/n × 100.

What is a percentage?

A percentage is a value or ratio that may be stated as a fraction of 100. If we need to calculate a percentage of a number, we should divide it's entirety and then multiply it by 100.

The percentage therefore refers to a component per hundred. Per 100 is what the word percent means. It is represented by %.

Since there are n gallons of oil in a tank. Then m gallons of oil are used. The percent of oil that remains:

= (n - m)/n × 100

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