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# Find out the wrong number.4, 9, 19, 43, 90, 185, 376

 A) 9 B) 19 C) 196 D) 86

 B) 19

Series follows the pattern

$$\Large 4 \times 2+1=9$$

$$\Large 9 \times 2+2=20$$

$$\Large 20 \times 2+3=43$$

$$\Large 43 \times 2+4=90$$

$$\Large 90 \times 2+5=185$$

$$\Large 185 \times 2+6=376$$

Hence in the question 19 is the wrong number. 19 should be replaced by 20.

Part of solved Number series questions and answers : >> Aptitude >> Number series

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