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# What is the next number in the series 3, 9, 19, 33 ......

 A) 51 B) 53 C) 55 D) 61

 A) 51

The given series is 3, 9, 19, 33, .....

The difference between 9 and 3 = 6

The difference between 19 and 9 = 10

The difference between 33 and 19 = 14

Next number will be 33 + 18 = 51

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

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