Arithmetic Reasoning (AR)Difficulty 3/5
Four test scores average 82. What score on a fifth test raises the average to 85?
- A88
- B91
- C94
- D97
Show answer and rationale
Correct: D. Total needed for average 85 over 5 tests = 425. Current total = 4 × 82 = 328. Fifth score = 425 − 328 = 97.
- A — 88 gives an average of 83.2.
- B — 91 gives 83.8.
- C — 94 gives 84.4.