SAT Math Multiple Choice Question 720: Answer and Explanation

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Question: 720

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If there were 20 students each in Class A and Class C, and 30 students each in Class B and Class D, how many students participated in the May fund-raiser?

  • A. 71
  • B. 72
  • C. 74
  • D. 76

Correct Answer: C

Explanation:

C

Data Analysis (graphs) HARD

We just need to tally the number of students who participated from each class.

Class A: 60% of 20 students = 12 students

Class B: 70% of 30 students = 21 students

Class C: 70% of 20 students = 14 students

Class D: 90% of 30 students = 27 students

12 + 21 + 14 + 27 = 74 students

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