Concept:Identify the term that breaks the pattern in the given number series.Explanation:Check the relation between consecutive terms.23×2−1=4545×2−9=8181×2−5=157157×2−5=309The subtracted values 1,9,5,5 are not consistent.If the intended pattern is ×2−3, then the second term should be 23×2−3=43.But the series has 45, so 45 is the incorrect term.Answer:45 is the wrong number.Correct option: E. 45