Question

What subjects together do more than half of the class like?

Math 9 people
Science 3 people
Art 5 people
Writing 3 people
History 1 person

Math and Writing
Science and History
Art and Science
History and Math

Answer 1

Math and Writing

Explanation:

Well if we add up all the people we get (9 + 3 + 5 + 3 + 1) = 21. Half of that is 10.5 so the sum of the two subjects must be at least 11. The amount of people that like Math and Writing is 11 people so the two subjects that more than half the class like are Math and Writing.

Answer 2

Math and Writing

Explanation:

Number of students who like each subject:

• Math = 9
• Science = 3
• Art = 5
• Writing = 3
• History = 1

Total number of students = 9 + 3 + 5 + 3 + 1 = 21

Half of 21 = 21 ÷ 2 = 10.5

Therefore, more than half the class would be > 10.5 students

Total number of students who like:

• Math and Writing = 9 + 3 = 12
• Science and History = 3 + 1 = 4
• Art and Science = 5 + 3 = 8
• History and Math = 1 + 9 = 10

Therefore, the only combination of subjects that more than 10.5 students like is Math and Writing as 12 > 10.5