Question 20
At a camp, 134 students received a burger and 62 received an ice cream. Fifteen received a burger and an ice cream but no fries, and 31 received all three types of food. There are 200 students. What is the largest possible number who received none of the three types?
Answer format: enter one whole number without units; leading zeros are optional. The source answer sheet uses four digits (for example, 7 is shaded as 0007).
Answer format: enter one whole number without units; leading zeros are optional. The source answer sheet uses four digits (for example, 7 is shaded as 0007).