Question

Of the $36$ students in Richelle's class, $12$ prefer chocolate pie, $8$ prefer apple, and $6$ prefer blueberry. Half of the remaining students prefer cherry pie and half prefer lemon. For Richelle's pie graph showing this data, how many degrees should she use for cherry pie?

$10$

$20$

$30$

$50$

$72$

Solution:

The number of students that prefer cherry or lemon pie is $36 - 12 - 8 - 6 = 10.$ Half of these like cherry pie, which is $10 \div 2 = 5.$

The number of degrees for cherry pie would then be $360^{\circ} \cdot \dfrac{5}{36} = 5 \cdot 10^{\circ} = 50 ^{\circ}.$

Thus, D is the correct answer.

2001 AMC 8 Problem 13

Solution:

Problem 13 in Other Years