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In the following series one number is wrong, find out the wrong number.
3, 6, 16, 47.5, 154.5, 558.5, 2257
3, 6, 16, 47.5, 154.5, 558.5, 2257
- A2257
- B47.5
- C154.5
- D558.5
Answer not set
Discussion 1
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CCommunity
The pattern of the following number series is:
⇒ 3,
⇒ 6 = 3 × 1.5 + 1.5 × 1
⇒ 16 = 6 × 2 + 2 × 2
⇒ 47.5 = 16 × 2.5 + 2.5 × 3
⇒ 154.5 = 47.5 × 3 + 3 × 4
⇒ 558.25 = 154.5 × 3.5 + 3.5 × 5
Hence the wrong term of the series is 558.5, it should be 558.25
⇒ 2257 = 558.25 × 4 + 4 × 6
⇒ 3,
⇒ 6 = 3 × 1.5 + 1.5 × 1
⇒ 16 = 6 × 2 + 2 × 2
⇒ 47.5 = 16 × 2.5 + 2.5 × 3
⇒ 154.5 = 47.5 × 3 + 3 × 4
⇒ 558.25 = 154.5 × 3.5 + 3.5 × 5
Hence the wrong term of the series is 558.5, it should be 558.25
⇒ 2257 = 558.25 × 4 + 4 × 6