80 percent of 30 equals what?

Question

i need to score 80 percent out of 30 questions to pass exam. how many questions may i miss to pass with 80 percent?

Answer 1

Do you know about percentages yet?

 

80% is the same as .80, or .8.

 

.80 times 30 = 24.

 

That means you have to get 24 right, so you can miss 6.

Answer 2

You can miss 20% of the questions and score 80%. So you can miss (20%)(30) which equals 6. The answer is 6.