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. Our SAT tutors can help you become very proficient with all types of math SAT questions.

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