In a class there are a total of 8 rows of desks and each desk can seat one student.

In a class there are a total of 8 rows of desks and each desk can seat one student. There are 10 desks in the first row. In each subsequent row there are 2 more desks than in the previous row. Find the maximum number of students seated in the class?

Quiz

Answer/Solution

136

Steps/Work

The 8 rows form an Arithmetic progression with first term 10 and last 24. Avg is 17.
so 17*8=136
Answer is C.

General Calculator / Auto Solver

In a class there are a total of rows of desks and each desk can seat one student. There are desks in the first row. In each subsequent row there are more desks than in the previous row. Find the maximum number of students seated in the class?

Calculated Answer

136

Step by Step Solution

In order to solve problem, you must evaluate n0 * (n0 + n1 + n0 * n2) / n2.

n0 =8
n1 =10
n2 =2