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More ways to get Braingle...

11, 19, 27, 33, 37, 45...

Series teasers are where you try to complete the sequence of a series of letters, numbers or objects.

 

Puzzle ID:#34806
Fun:*** (2.15)
Difficulty:*** (2.9)
Category:Series
Submitted By:jsdodgersAus*****!

 

 

 



Find the next three numbers in this series:

11, 19, 27, 33, 37, 45, 49, 55, 63, 69, 73, 79, 83, 91, 95, 101, 109, 113, 119, 125, 129, 135, ?, ?, ?



Answer

139, 143, 149

The nth number in the series is the nth odd composite number plus 2n.

EX: 1st number= 9 (1st odd composite number) + 2 (2*1)=11
2nd number= 15 (2nd odd composite number) + 4 (2*2)=19,
and so on.

at the end: 139= 93+46, 143= 95+48, and 149= 99+50.

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