Introduction to Ratios
Jenna has 3 red balloons and 5 blue balloons
1.) What is the ratio of red balloons to blue balloons?
2.) If Jenna adds 2 red balloons and removes 1 blue balloon, what is the new ratio of red balloons to blue balloons?
1.) 3 : 5
2.) 5 : 4
Stan earns $12 per hour by working as an intern at a law firm. If he works 28 hours this week, how much money does he earn?
$336
1.) What is the ratio of caretakers to children (in simplest form)?
2.) If 24 more children are added, how many caretakers should be hired to maintain the ratio?
1.) 1 : 6
2.) 4 caretakers should be hired
Tia is traveling from city A to city B. The two cities are 320 miles apart. She has traveled 260 miles at a steady speed for 4 hours. What is Tia's average speed?
65 miles per hour.
What percentage of the circles are shaded?
25%
The ratio of squares to triangles is 10 : 4
1.) What is the ratio of squares to triangles in simplest form?
2.) How many triangles need to be added to make the ratio of the number of squares to the number of triangles 1:1?
1.) 5 : 2
2.) Add "6" triangles
On a school trip, there are 4 buses to carry 96 students. How many students are there on each bus?
24 students
Red Pencils | Green Pencils
2 | 6
4 | 12
6 | 18
8 | 24
What is the ratio of red to green pencils (in simplest form) ?
1 : 3
Here is the cost each month for pounds of grapes:
January - 2 pounds for $7.40
February - 4 pounds for $10.80
March - 5 pounds for $11.65
April - 3 pounds for $7.50
May - 2 pounds for $5.40
Which month was the unit price the same as it was in May?
February
What is 66% of 75?
49.5
To make lemonade, Kate uses 1 cup of lemon juice and 2 cups of sugar. If she makes a larger amount of lemonade with 10 cups of sugar, how many cups of lemon juice does she need?
5 cups of lemon juice
What are the equivalent unit rates?
1.) 64 / 8 = ?
2.) 40 / 10 = ?
3.) 60 / 12 = ?
4.) 56 / 8 = ?
5.) 42 / 7 = ?
1.) 8
2.) 4
3.) 5
4.) 7
5.) 6
At the City Zoo, the number of keepers is 12 while the number of animals is 42. If 21 more animals are added, how many total keepers are needed to maintain the ratio of keepers to animals?
18 total keepers
A box of chocolates costs $9. How much will 15 boxes of chocolates cost?
$135
In a day, Robin spends her day like this:
6 hours - at school
9 hours - sleep
3 hours - play
rest of the time - doing other things
1.) What percent of the day does Robin play?
2.) What percent of the day does Robin "do other things" ?
1.) 12.5%
2.) 25%
What is the simplest form of the ratio 40:16?
5:2
A jug holds 10 pints of milk. If each child gets one cup of milk, how many children are there?
(1 cup = 8 fluid ounces and 1 pint = 16 fluid ounces)
20 children
The actual length of a Concorde Airplane is approximately 200 feet. On a scale model, the ratio of actual length (in feet) to the length of the model (in cm) is 5:1. What is the approximate length of the model?
40 cm
If a ferry boat covers 28 miles in 4 hours, how much distance will it cover in 12 hours?
84 miles
2.) What is the cost of a $35 pair of shoes after a 40% discount?
1.) $12
2.) $21
Abby earns $7 for hour working as a cashier at a cafe.
1.) If she works 28 hours, how much money does she earn?
2.) If she earned $784.00, how many hours did she work?
1.) $196.00
2.) 112 hours
CONVERSION PROBLEM:
What is 750 grams in kg?
0.75 kg
CONVERSION PROBLEM:
A small transport truck can carry about 200 pounds of fruits and vegetables. How many ounces of fruits and vegetables can the truck carry
(1 pound = 16 ounces)
3200 ounces
CONVERSION PROBLEM
1.) How many miles is 352 yards?
2.) How many yards is 372 feet?
1.) 0.2 miles
2.) 124 yards
CONVERSION PROBLEM
1.) How many miles is 10,560 feet?
2.) How many feet is 348 inches?
1.) 2 miles
2.) 29 feet