Let a 1 , a 2 ,.......a 3n be an arithmetic progression with a 1 = 3 and a 2 = 7. If a 1 + a 2 + ......+a 3n = 1830, then what is the smallest positive integer m such that m (a 1 + a 2 + ..... + a n ) > 1830?

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CAT 2017 Slot 1 QA · Question 34

Let a₁, a₂,.......a_3n be an arithmetic progression with a₁ = 3 and a₂ = 7. If a₁ + a₂ + ......+a_3n = 1830, then what is the smallest positive integer m such that m (a₁ + a₂ + ..... + a_n) > 1830?

A.
8
B.
9
C.
10
D.
11

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