30 September 2024 | GMAT | QUANT

During a trip that they took together, Carmen, Juan, Maria, and Rafael drove an average (arithmetic mean) of 80 miles each. Carmen drove 72 miles, Juan drove 78 miles, and Maria drove 83 miles. How many miles did Rafael drive?

  • A. 80
  • B. 82
  • C. 85
  • D. 87
  • E. 89
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