Question

Solve by simplifying the problem. There are 18 students in Mr. Alvarez’s art class. Throughout the year, every student must pair up with every other student to complete a project. How many projects will be finished?
A. 149 projects
B. 153 projects
C. 171 projects
D. 135 projects

Answer 1

18 students in the classroom.....one of them will be doing a project with each one of them. So, 17 students.

Result: 18−17/2=306/2=153