Civil Service Exam Reviewer · Logical Reasoning · medium

If 8 ★ 6 = 112, 6 ★ 2 = 48, then 6 ★ 4 = ?

  1. 60
  2. 52
  3. 20
  4. 100

Answer

A. 60

Solution

The rule is a ★ b = a² + ab. Check: 8 ★ 6 → 112; 6 ★ 2 → 48. So 6 ★ 4 = 60.

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