MBA
Exam
Numerical Ability
Arithmetic
Find the sum of 1st 20 terms of the series 1, 6, 21, 52, 105, 186,... . (this ques appeared in AIMCAT but i am nt getting the method used by them. i want a general approach. 1) 28880 2) 28740 3) 41440 4) 47180 5) 42410
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