Find wrong number in series

CMAT 2024 · Logical Reasoning · Medium · Number Series

In the following number series, only one number is wrong, find out the wrong number:

888, 454, 237, 128.5, 76.25, 47.125

  1. A.

    76.25

  2. B.

    454

  3. C.

    128.5

  4. D.

    237

Answer

A

Explanation

The pattern in the series is as follows:

  • 888÷2+10=454888 \div 2 + 10 = 454
  • 454÷2+10=237454 \div 2 + 10 = 237
  • 237÷2+10=128.5237 \div 2 + 10 = 128.5
  • 128.5÷2+10=74.25128.5 \div 2 + 10 = 74.25

However, the given term is 76.2576.25. Therefore, 76.2576.25 is the wrong number in the series.

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