A recipe for chili for 20 people requires 4 pounds of beans. At this rate, how many pounds of beans are required to make chili for 150 people?

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Answer 30 pounds
Level of Difficulty E M H

This problem can be solved with a simple proportion:

In words, 20 people is to 4 pounds as 150 people are to how many pounds? As an equation,

20/4 = 150/x.

After cross-multiplying, you get

20x = 600

After dividing both sides by 20, you find out that x = 30 pounds of beans. You would enter 30 into the grid.

For more practice with proportions, go to Skill Set 3: Fractions, Proportions, and Inverse Relations.

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