Multiple choice

In the following number-series, one number is wrong. Find the wrong number: 2 \quad 3 \quad 6 \quad 15 \quad 52.5 \quad 157.5

  1. 3

  2. 6

  3. 15

  4. 52.5

  5. 157.5
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The pattern follows multipliers increasing by 0.5 each time: 2×1.5=3, 3×2=6, 6×2.5=15, then should be 15×3=45, and 45×3.5=157.5. The term 52.5 breaks this pattern since 15×3.5=52.5, but then the multiplier drops to 3 instead of continuing to 4. Option A (3) is correct as 2×1.5. Option B (6) is correct as 3×2. Option C (15) is correct as 6×2.5. Option E (157.5) would be correct if the previous term were 45, not 52.5.

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