Match List I (Number series) with List II (Value of P in the series) and choose the correct answer from the options given below.
List I
i.2, 9, 28, 65, 126, P
ii.2, 10, 30, 68, 130, P
iii.3, 4, 11, 30, 67, 128, P
iv.5, 12, 31, 68, 129, P
List II
a.220
b.222
c.217
d.219
Ai-a, ii-b, iii-c, iv-d
Bi-b, ii-a, iii-d, iv-c
Ci-c, ii-b, iii-d, iv-a ✓ Correct
Di-c, ii-a, iii-d, iv-b
Correct answer: (C) i-c, ii-b, iii-d, iv-a
Explanation
The correct match is i-c, ii-b, iii-d, iv-a.
series i is n^3 + 1, so P = 216 + 1 = 217.
series ii is n^3 + n, so P = 216 + 6 = 222.
series iii has second differences of 6, giving P = 128 + 91 = 219.
series iv is n^3 + 4, so P = 216 + 4 = 220.
pairing the P values gives i-c, ii-b, iii-d, iv-a.
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