Question 16
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series:
B, E, I, S, K, ?
Solution
The letters corresponding to the above series are : B(2), E(5), I(9), S(19), K(11 or 37)
2 $$\times2+1=5$$
5 $$\times2-1=9$$
9 $$\times2+1=19$$
19 $$\times2-1=37$$ (or 11)
11 $$\times2+1=23\equiv W$$
=> Ans - (A)
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