ISEE Word Problems Question 335: Answer and Explanation

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Question: 335

2. Paula is 3 years older than Lindsey, who is 2 years younger than Dave. If Paula is 17, how old is Dave?

  • A. 16
  • B. 17
  • C. 19
  • D. 21

Correct Answer: A

Explanation:

A is correct. Create equations to solve this problem.

Paula = Lindsey + 3

Lindsey = Dave − 2

You are told that Paula is 17. Substitute that information into the first equation.

17 = Lindsey + 3

Lindsey = 14

Substitute that into the second equation.

14 = Dave − 2

Dave = 16

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