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tmua.me Medium Set A Paper 1 · Q5

Paper 1Sequences & seriesNumber & counting

For every positive integer nn, the sum of the first nn terms of a sequence u1,u2,u3,…u_1,u_2,u_3,\ldots is

2n2+3n.2n^2+3n.

What is the least value of nn for which un>101u_n>101?

A77
B2525
C2626
D5050
E5151

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