Question

While completing a practice test online, M'Lea

answered 6 out of 20 questions incorrectly. If
the ratio of incorrect to total questions remains
constant, how many questions should M'Lea
answer correctly out of 30 questions?

Answer 1

9

Explanation:

Set up a ratio.

6/20 = x/30

cross multiply and solve for x.

20x = 6(30)

20x = 180

x = 9