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Proportions
Contributed by: Turner
(Original author: Stephens)
The ratio of boys to girls in history class is 4 to
5. How many girls are in the class if there are
12 boys?
12
15
16
14
9
7
James read 4 pages in a book in 6 minutes. How
long would you expect him to take to read 6
pages?
8
6
Sara can type 90 words in 4 minutes. How many
words can she type in 10 minutes?
225
220
230
235
620
Two slices of Dan's famous pizza have 250 calories.
How many calories are in 5 slices of pizza?
625
630
635
12
11
A recipe that will make 3 pies calls for 7 cups of
flour. How many pies can be made with 28 cups
of flour?
10
13
Gabriella bought three melons for $7. How many
melons can April buy is she has $21 ?
7
9
8
4
Casey bought four bags of pasta for $9. How many
bags of pasta can Eric buy if he has $18 ?
8
9
7
5
If you buy one fruit basket for $30 then how many
can you buy with $60 ?
3
2
1
4
Jasmine bought 32 kiwi fruits for $16. How many
kiwi fruits can she buy with $4 ?
8
7
6
9
One bunch of seedless grapes costs $2. How many
bunches can you buy for $20 ?
11
10
5
1
There are twelve grey mice in the barn. If the ratio of brown mice to gray mice is 1:2, how many brown mice are there?  
There is a total of 368 marbles in a jar that are blue or red. The ratio of blue to total marbles is 3:8.  How many blue marbles do you have in the jar?
The ratio of grade 7's to grade 8's is 5:3.  
If there are 120 grade 8's, 
how many grade 7's are there?
How many blue pens are there in the box?
How many total pens are there in the box?
How many red pens are there in the box?
There 25 blue pens in a box. The ratio of red to blue pens is 7:5. 
There are a total of 120 pens in a box. 
The ratio of red to blue pens is 7:5. 
How many red pens are there in the box?
The ratio of grade 7's to grade 8's is 5:3.  If there are a total of 90 grade 8's, how many grade 7's students are there?
The ratio of three numbers is 4:3:2.  
The smallest number is 12.  
What is the middle number?
A box of candy says that for 
every 50 g of candy, 
there is 24 g of sugar. 
If you ate 75 grams of candy, 
how much sugar did you eat?
You mix 3 pints of yellow paint for every 4 pints of blue paint to make green paint.  If you use 12 pints of blue paint, how much yellow paint do you need to make green?
The ratio of taxis to buses to bikes is 12:5:18. How many buses are there if there are 72 bikes?
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