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RATIOS AND RATES
PERCENT CHANGES
SOLVING PROPORTIONS AND RATIOS
PART, WHOLE, PERCENT
PROPORTION WORD PROBLEMS
100

What are the three different ways to write the ratio of pencils to pens if there are 11 pencils and 14 pens?

What is 11/14, 11:14, and 11 to 14

100
A pair of shorts cost $48.99. If the shorts go on sale for 15% off, what is the new price?
What is 41.64?
100
solve 48/20 = 12/n
What is n =5?
100
What is 14% of 98?
What is 13.72?
100
Michelle works 8 hours for $140.00. If he works 19.5 hours, how much will she earn?
What is $341.25?
200
John travels 1686 miles in 3 days. How far did John travel per day?
What is 562 miles per day?
200
At the restaurant the bill is $45.50. If I leave a 15% tip, what is the total cost including tip?
What is $53.33?
200
Write a proportion and then solve: x is to 6 as 12 is to 15.
x/6=12/15 x = 4.8
200
35 is what percent of 83? Round to the nearest whole number
What is 42%?
200
Three slices of cheese cake have 4,200 calories. How many calories will 8 slices of the same cheese cake?
What is 9,800 calories?
300
Which is the better buy? 36 books for $250 or 30 books for $209
What is 36 books for $250?
300
A computer is on sale for 20% off. If the sale price is $600, what is the original price of the computer?
What is $750
300
Does the pair of ratios form a proportion? 3/16 and 9/48
What is yes?
300
45 is 25% of what number?
What is 180?
300
Tara got 88% of the questions correct on her test. She answered 44 problems correctly. How many questions were on the test?
What is 50?
400
There are 18 red cars to 6 white cars in the parking lot. Write a ratio as a fraction in simplest form of the number of red cars to the total number of cars in the parking lot
What is 3/4?
400
Jessie earns 18% commission on all computers that she sells. If she sells $10,000 worth of computers, how much money does she make in commission?
What is $1,800?
400

Write three equivalent ratios of 9:15

What is 3:5, 6:10, 12:20, 15:25, 18:30, etc.

400
What percent of 80 is 2?
What is 2.5%?
400
The quarterback at Catoctin High School threw 86 passes during the football season. He completed 39 passes. What percent of the passes were completed?
What is 45%
500
John ate 15 hotdogs, Mark ate 12 hotdogs and Sam ate 13 hotdogs. Write a ratio as a fraction in simplest form for the number of hotdogs Mark ate to the total number of hotdogs eaten
What is 3/10?
500
The value of a new iphone is $550, but after a year or two of use the value drops to $300. What is the percent change in the value of an iPhone?
What is 45.5%?
500

Brendan uses a ratio of 4 cups of coffee to 7 cups of water. Matt uses a ratio of 3 cups of coffee to 5 cups of water. Who makes the stronger coffee?

Who is Matt

500
Maureen earned 22 out of 25 points on her last math test. What percent of 25 points is 22 points?
What is 88%?
500
A typist can type 120 words 100 seconds. How long would it take her to type 258 words?
What is 215 seconds?