For all the problems in this set the domain is the set of positive integers.
-The bottom row of a stack of cans contains 35 cans. Each layer contains one fewer can than the layer below it. The top row has 1 can. How many cans are in the stack?
A) 630
B) 612
C) 595
D) 578
E) None of these

Question

Quizplus · Accepted Answer

The stack forms an arithmetic sequence with the first term as 35 and the last term as 1, with a common difference of -1. The number of terms is 35. The sum of an arithmetic sequence is given by the formula: S = n/2 * (first term + last term). Substituting the values, S = 35/2 * (35 + 1) = 630.

For All the Problems in This Set the Domain Is