Ratios in Real Life
Unit Rates
Percents
Ratios as Fractions
Challenge
100
What is the ratio of boys to girls if there are 17 boys and 17 girls?
What is 1:1?
100
If a car travels 60 miles in 30 minutes, how many miles per hour is he traveling?
What is 120?
100
If there are 15 people out of 20 people that like pie, what is the percent of pie lovers?
What is 75%?
100
Write the ratio 3:4 as a common fraction.
What is 3/7?
100
What is the ratio for the fraction 789/987?
What is 789:198 or 198:789?
200
What is the ratio of boys to girls in a class with 15 boys and 37 students?
What is 15:22?
200
Joe can run at 15 miles per hour. How long would it take him to run 120 miles?
What is 8 hours?
200
If 5% of the world's 7 billion people have flown a plane, what is the ratio of pilots to others
What is 35:700?
200
Is the ratio 5:8 the fraction 5/13 or 5/8
What is 5/13?
200
There are 2 people in 200 that have a car. What is the ratio of cars to no cars?
What is 1:94?
300
The ratio of the world human population to alien population is 7:100. Assuming that the aliens have an alliance with us, what is the ratio of the alien population to the whole of the alliance?
What is 7:107?
300
30% of a class are adults. If there 27 people in the class, how many are not adults? ROUND UP.
What is 19?
300
If 75% of the ocean on a foreign planet is the compound Al2O3:Cr, what is the ratio the compund H2O to Al2O3:Cr?
What is 1:3?
300
What is the ratio of hydrogen to oxygen the compound H2O is hydrogen if the fraction of oxygen is 1/3?
What is 2:1?
300
Name one example a ratio is expressed.
What is percent, fraction, decimal, ratio?
400
There are 5 people. There are 2 people with no electricity. In 100 people, how many need electricity?
What is 40?
400
The rate of Joe's flying is 10 times faster than Bob's sailing. If they have a 100 mile race, how far does Bob have to go if Joe finishes?
What is 90 miles?
400
What percent of the time is Roman listening if the ratio is 27:73 for listening to talking?
What is 27%?
400
The fraction 45/90 is expressed as what common fraction?
What is 1/2?
400
There are 6211823 boys and 4682233 girls, what is the APPROXIMATE ratio of girls to boys? (round to nearest 100,000)
What is 47:62? Numbers are randomly generated.
500
If there are 7 billion people on Earth in 2012, and 10 people are born in one year and 0 people die, what is the number of people in 2017?
What is 7,000,000,050?
500
The rate Bob drives is 15 mph. How long will it take for him to drive 35 miles?
What is 2.3333333333333333...?
500
If 99% of the world owns only 1¢, what is the ratio of the people that own own 1¢ to the total population?APPROXIMATE ANSWERS WILL BE ACCEPTED.
What is 693:700?
500
The fraction 203/980 is expressed as what ratio?
What is 777:203 or 203:777?
500
How much time does it take for Bob, a drunk driver, traveling at 670,615,200 miles per hour (the speed of light) to reach a destination 1,341,230,401 miles away?
What is 2.149116810...?