Respect Responsibility Readiness
1. The ratio of students to
teachers in a school with 1200 students and 50 teachers.
2. The ratio of men to women at a college with 1500 men and 1800 women.
3. The ratio of tin to copper in an alloy that contains 48 kg of copper and 32
kg of tin.
4. The ratio of wins to losses on 40 games with 15 losses and no ties.
5. The ratio of advertising time to nonadvertising time in a one-hour TV show
that includes 8 minutes of ads.
6. The ratio of the area of a rectangle with sides 8 cm and 12 cm to the area
of a square with sides 10 cm.
7. A car traveled 500 miles on 25 gallons of gas. (mpg)
8. Frank typed 90 words in 4 minutes. (wpm)
9. A jet traveled 1000 miles on 2.5 hours. (mph)
10. A gear revolved 480 times in 15 minutes. (rpm)
11. Juan ran 600 meters in one minute 20 seconds. (meters per second)
12. Osgood ate 9 hamburgers in half an hour. (hamburgers per minute)
13. Mary Thon ran 26 miles in 2 hours 40 minutes. (minutes per mile to the
nearest tenth)
15.
Find two numbers whose ratio is 3 : 7 and whose sum is 150.
16. A certain color is made by blending red paint and blue paint in a 9 : 4
ratio. How many liters of each are needed to make 65 liters of this
color paint?
17. A commission of $1,000 is to be divided between two people in a 3 : 5 ratio. How much should each person receive?
18. Three numbers are in a 2 : 3 : 5 ratio and their sum is 70.
Find the numbers.
19.
The sum of the angle measures of any triangle is 180 degrees.
Find the three angle measures of a triangle if they are in an 8 : 3 : 4
ratio
20.
A grass seed mixture contains bluegrass, ryegrass, and fescue seeds in a 4 : 3 :
1 ratio. How many ounces of each
seed are contained in a 3 pound (48 ounce) box of the mix?
21.
A market carries five flavors of ice cream.
They sell in approximately a 2 : 2 : 3 : 6 : 7 ratio. How many cartons of
each should be stocked if there is space for 80 cartons?
22.The
width and length of a rectangular poster are in a 2 : 3 ratio.
The perimeter of the poster is 160 cm.
Find its dimensions.
23.
If there are 560 calories in 8 ounces of meat, how many calories are in 3 ounces
of meat?
24. If 2 cubic feet of
sawdust weigh 25 pounds, how much do 9 cubic feet of sawdust weigh?
25.
A certain hose delivers 5 gallons of water in 24 seconds. How much water will
the hose deliver in 10 minutes?
26.
The ratio of the weight of an object on Mars to its weight on Earth is 9 to 25.
If a person weighs 120 pounds on Earth, how much would the person weigh on Mars?
27.
A flagpole casts a shadow 8.5 meters long. If an algebra student 1 .6 meters
tall casts a shadow 2.0 meters long at the same time and location, how tall is
the flagpole?
28.
A U.S. nickel is composed of 3.9 grams of copper and only 1 2 grams of nickel.
How many kilograms of copper must be combined with 4 kilograms of nickel in the
manufacture of nickel coins?
29.
At a certain college, the ratio of men to women is 6 to 5. If there are 2580
men, how many women are there?
30.
In a town of 30,000 households, a survey was taken to estimate the number of
households in which a certain TV program had been viewed. Of the 200 residences
surveyed, the program had been seen in 64. Assuming that this was a
representative sample, estimate the total number of households in the town in
which the program was viewed.