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