### Brain Teasers

# How Many Students Got an A?

The teacher has finished grading the math papers at West High School. The class size is under 30. One third of the class got a `B`, one fourth got a `B-` and one sixth got a `C`. One eighth of the class flunked and the remainder of the class received an `A`.

How many students in the class received an `A`?

How many students in the class received an `A`?

### Answer

Find a common denominator for 3, 4, 6 and 8. The only common denominator smaller than 30 is 24. Therefore, the class size was 24 and the grades were:B: 8

B-: 6

C: 4

D/F: 3

The number of students who received A`s was 3 (24 - 21)

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