Multiple choice

In the following wrong number series, a term is wrong. Find the wrong term. 2100 840 336 134.6 53.76 21.504

  1. $21.504$
  2. $53.76$
  3. $336$
  4. $2100$
  5. $134.6$
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E Correct answer
Explanation

The pattern should be: divide by 2.5 each time (multiply by 0.4). 2100×0.4=840, 840×0.4=336, 336×0.4=134.4, 134.4×0.4=53.76, 53.76×0.4=21.504. However, the series shows 134.6 instead of 134.4. This is the wrong term that breaks the pattern.

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