RATIOS AND UNIT RATES
PERCENT PROPORTIONS
SOLVING PROPORTIONS
% OF A NUMBER
PROPORTION WORD PROBLEMS
100
write a ratio three ways for 11 pencils to 14 pens
What is 11/14 11:14 11 to 14
100

A pair of shorts cost $50. If the shorts go on sale for 20% off, what is the new price?

What is $40?

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 $40.00. If I leave a 20% tip, what is the total cost including tip?

What is $48?

200
Write a proportion and then solve: x is to 6 as 12 is to 15.
x/6=12/15 x = 4.8
200

27 is 90% of what number?

What is 30?

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 90% of the questions correct on her test. She answered 45 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 20% commission on all computers that she sells. If she sells $1000 worth of computers, how much money does she make in commission?

What is $400?

400

If the ratio of marbles to stickers is 3 to 4, what is the ratio of marbles if stickers is 8.

3:4

x:8

What is 6?

400

24 is 25% of what number?

What is 96?

400

The quarterback at Catoctin High School threw 86 passes during the football season. He completed 34 passes. What is the ratio of completed passes to total passes?

What is 17:43

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 $500, but after a year or two of use the value drops 40%. What is the value of the iPhone now?

What is $300?

500

Solve the proportion for 7 pencils to 21 papers, so x pencils to 63 papers.

What is 21?

500

A car's tank is 40 gallons. It is currently 30% full. How many gallons of gas are in the tank?

What is 12?

500
A typist can type 120 words 100 seconds. How long would it take her to type 258 words?
What is 215 seconds?
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