Ratio problems

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 simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

Front

If the ratio of boys to girls in a class is 2:3, how many boys are there if there are 15 girls?

Back

There are 10 boys.

Front

What does it mean if a ratio is expressed as 1:4?

Back

It means for every 1 part of the first quantity, there are 4 parts of the second quantity.

Front

How do you find a missing value in a ratio?

Back

Set up a proportion based on the known values and solve for the missing value.

Front

If a recipe requires 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2:3.

Front

What is the total number of parts in the ratio 5:2?

Back

The total number of parts is 5 + 2 = 7.

Front

If 24 people won a game and the ratio of winners to losers is 8:5, how many losers are there?

Back

There are 15 losers.

Front

How do you divide a total amount in a given ratio?

Back

To divide a total amount in a ratio, first find the total number of parts in the ratio, then divide the total amount by this number to find the value of one part.

Front

If David and Jack share $120 in the ratio 3:5, how much does David get?

Back

David gets $45.