Which of the following numbers will replace the question mark (?) in the given series?
5, 8, 20, 34, 76, 142, ?
A. 296
B. 284
C. 388
D. 416
Sol:
Here the logic is :
5 × 2 – 2 = 8;
8 × 2 + 4 = 20;
20 × 2 – 6 = 34;
34 × 2 + 8 = 76;
76 × 2 – 10 = 142;
Similarly,
142 × 2 + 12 = 296 Hence, the correct answer is 296.
