# Ratios

## How do we solve ratio problems?

 Ratio  Definition: A comparison between quantities using division. Examples : 3:2 , 3:2:88, 3 to 2, 3 to 2 to 88 A 2 to 5 ratio can be represented as 2:5 A ration between X and Y can be written X/Y X:Y X to Y

MEDIUM SAT PROBLEM #8 out of a 25 problem section

A bucket holds 4 quarts of popcorn. If 1/3 cup of corn kernels makes 2 quarts of popcorn, how many buckets can be filled with the popcorn made from 4 cups of kernels?

• 96
• 24
• 6
• 3
• 1.5
(Saturday/1.200) p. 524
 C. 6

MEDIUM SAT PROBLEM:

A recipe for making 10 loaves of bread requires 24 cups of flour and 4 tablespoons of baking powder. If the proportions in this recipe are to be used to make 3 loaves of bread, how many cups of flour will be needed? (Do not round your answer)

• 72
• 2.7
• 30
• 7.2
 B) 7.2 24*(3/10)

 MEDIUM SAT PROBLEM: The ratio of j to k to l to m to p is 5 to 4 to 3 to 2 to 1. If j = 60, what is the value of m? 8 12 24 55 57 (Saturday/5.2002 #16) p. 659
 C) 24 METHOD: RATIO table This should be fairly easy if you use the method we have practiced. Assuming you have the method down, the only reason to get this wrong is a careless arithmetic error. For those of you making these errors, I hope you're starting to see why it's  a better use of your limited test taking time to double check your work on the medium questions than to rip your hair out and spend a lot of time trying to puzzle out the hardest questions which very few people can answer. (Listen try those last ones if you get there, but first make sure you think through these medium ones on which most people can more consistently score points.)

SAT PROBLEM
#19 out of 25

Five of the 12 members of a club are girls and the rest are boys. What is the ratio of boys to girls in the club?(Grid your ratio as a fraction)

Student Generated Response: Grid-in

( Sunday/5.1997 #19) p. 499

 Toggle Answer 7/5 or 1.4

 MEDIUM-HARD SAT PROBLEM #17 out of a 25 problem section The ratio of 1.5 to 32 is the same as the ratio of 0.15 to x. What is the value of x? (Student generated response) (#17 out of 25 Satuday/11.1996 SAT) p.383 * 3.2 or 16/5