Direction: Find out the missing number in the following number series.
2, 14, 34, 64, 106, ?
A. 162
B. 168
C. 172
D. 178
E. 156
Sol:
2 + (3 * 4) = 14
14 + (4 * 5) = 34
34 + (5 * 6) = 64
64 + (6 * 7) = 106
106 + (7 * 8) = 162
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