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: | 15 | 9 | 8 | 12 | 36 | 170 |
Series 2: | 19 | a | b | c | d | e |
What will come in place of (b) ?
Explanation
Given number series 1 follows the logic
⇒ 15×1-1×6=15-6=9
⇒ 9×2-2×5=18-10=8
⇒ 8×3-3×4=24-12=12
⇒ 12×4-4×3=48-12=36
⇒ 36×5-5×2=180-10=170
Similarly, series 2
(a)⇒ 19×1-1×6=19-6=13
(b)⇒ 13×2-2×5=26-10=16
Hence, Option B is correct.
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