14, 18, 82, 118, 630, ?
Explanation:
Let us calculate the difference between consecutive terms.
18 – 14 = = 22
82 – 18 = 64 = 43
118 – 82 = 36 = 62
630 – 118 = 512 = 83
Hence, the difference is alternately square and cube of consecutive even numbers.
∴ Next number should be 630 + 102 = 730
Hence, option (a).
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