hard · GMAT Quant
A logistics company calculates the differential maintenance cost c_n for vehicle fleet group n, where n ≥ 1, according to c_n = dfrac3n+2n(n+1)(n+2).
What is the total sum sum_n=1^N c_n for N fleet groups?
- dfrac2N+3(N+1)(N+2)
- dfracN(2N+3)(N+1)(N+2)
- dfrac2N^2+1(N+1)(N+2),
- dfracN(N+3)(N+1)(N+2)
- dfrac2NN+2
Sign up free to see the explanation and track your rank →
More GMAT Quant practice
- Including both endpoints, how many distinct integer price points are in this range?
- Which of the following expressions must result in a positive value?
- Which property of arithmetic justifies that first step?
- Which of the following must also be an even integer?
- Which of the following inequalities correctly represents this range?
- Which of the following includes the number 0?
- How many unique meal combinations can a customer create?
- What is the probability that the lightbulb is functional?