Question

HELP IN THIS QUESTION

Answer 1

Given:

80% correctly; if 16 correct, what is the total?

16/y = 80/100

cross muliply

16 x 100 = 80 x y

1600 = 80y

Divide 80 on either sides.

1600 / 80 = 80y / 80

80 and 80 cancels out.

20 = y

16/20 x 100 = 80%

Answer 2

the answer is 20 questions.