There's a Multiple choice and True and False 90 question test. How many questions, have to be?

... answered correctly to score a 80% or:... answered correctly to score a 80%or:That's easy. The answer is 80.

... answered correctly to score a 80%

or:... answered correctly to score a 80%

or:That's easy. The answer is 80.

Tags:score,false,question,