Question

There are 80 questions on a test. 1/4 of the answers are the letter A, 20% of the answers are letter B, 28 answers are the letter C, How many answers are the letter D?

18
28
20
16

Answer 1

16

Explanation:

1/4 is 20

20per is 16

20+16+28 is 64 minus 80 is 16