In series 1, only one number is wrong. If the wrong number is corrected, the series gets established following a certain logic. Complete series 2 with same logic and answer the given question.
| Series 1: | 1 | 2 | 8 | 33 | 148 | 740 | 4626 |
| Series 2: | 2 | a | b | c | d | e | f |
What will come in place of (d) ?
Explanation
The given number series 1 follows the logic,
⇒ 1×1+1²= 2
⇒ 2×2+2²= 8
⇒ 8×3+3²= 33
⇒ 33×4+4²= 148
⇒ 148×5+5²= 765
⇒ 765×6+6²= 4626
Similarly, series 2
(a)⇒ 2×1+1² = 3
(b)⇒ 3×2+2² = 10
(c)⇒ 10×3+3² = 39
(d)⇒ 39×4+4²=172
(e)⇒ 172×5+5²= 885
(f)⇒ 885×6+6²= 5346
Hence, Option E is correct.
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