A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
6, 12, 15, 30, 33, ?, 69, 138
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
6, 12, 15, 30, 33, ?, 69, 138
1). 64
2). 65
3). 66
4). 68
1 answers
Answered by
Guest on
2019-07-20 20:46:22 | Votes
0 |
# Numbers are alternatively multiplied by 2 and increased by 3.
6 × 2 = 12
12 + 3 = 15
15 × 2 = 30
30 + 3 = 33
33 × 2 = 66
66 + 3 = 69
69 × 2 = 138
Hence, the missing number is 66.
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