Work Step by Step
We first figure out how many pencils the teacher needs. The teacher has 125 students and needs two pencils a student, so we multiply 125 by 2 to get 250 pencils total. We divide 250 by 24 to get just over 10 boxes. Because the teacher needs every student to have two pencils, however, the teacher cannot just buy 240 pencils, so the teacher needs to buy 11 boxes.