Ratio Test Review

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a:b'.

Front

How do you find the equivalent ratio?

Back

To find an equivalent ratio, multiply or divide both terms of the ratio by the same non-zero number.

Front

What does it mean to simplify a ratio?

Back

Simplifying a ratio means reducing it to its simplest form by dividing both terms by their greatest common divisor.

Front

If the ratio of apples to oranges is 2:3 and there are 10 apples, how many oranges are there?

Back

15 oranges.

Front

What is the unit rate?

Back

The unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per unit'.

Front

How do you calculate the unit rate from a ratio?

Back

To calculate the unit rate, divide the first quantity by the second quantity.

Front

If 4 pencils cost $2, what is the cost per pencil?

Back

$0.50 per pencil.

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object or area that is proportionally reduced or enlarged to fit on paper.

Front

If a scale drawing has a scale of 1 inch = 5 feet, how many feet does 3 inches represent?

Back

15 feet.

Front

What is the ratio of boys to girls in a class of 12 boys and 8 girls?

Back

The ratio is 3:2.