Multiple choice

Find the wrong number in the given series? 42, 63, 94.5, 141.75, 212.92, 318.9375

  1. 63

  2. 94.5

  3. 141.75

  4. 212.92

  5. 318.9375
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Checking the pattern: 63 = 42 × 1.5 (correct), 94.5 = 63 × 1.5 (correct), 141.75 = 94.5 × 1.5 (correct), 212.92 should be 141.75 × 1.5 = 212.625, not 212.92. The small error makes 212.92 the wrong number. This is a geometric progression with multiplying factor 1.5, but one term doesn't follow precisely.

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