Brain Teasers
11, 19, 27, 33, 37, 45...
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, ?, ?, ?
11, 19, 27, 33, 37, 45, 49, 55, 63, 69, 73, 79, 83, 91, 95, 101, 109, 113, 119, 125, 129, 135, ?, ?, ?
Hint
compositeAnswer
139, 143, 149The 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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