1.

Let a1 , a2 ,........a3n be an arithmetic progression with a1 = 3 and a2 = 7. If a1 + a2 + ....+a3n = 1830, then what is the smallest positive integer m such that m (a1 + a2 + .... + an ) > 1830?

A. 8
B. 9
C. 10
D. 11
Answer» C. 10


Discussion

No Comment Found