Question

This morning, Perla took a history test. There were 72 multiple-choice problems on the test and Perla answered 75% of them correctly. How many problems did Perla get right?

Answer 1

First we must convert 75% into a decimal so

`(75)/(100) = 0.75`
Now we just multiply the total times the percentage correct:

72 x 0.75 = 54 questions correct. Additionally that also means that Perla got 18 questions incorrect, since 72-54=18.