A candidate attempted 12 questions and secured full marks in all of them. If he secured 60 percent marks in the test and all questions carried equal marks, then what is the number of questions in the test?
A candidate attempted 12 questions and secured full marks in all of them. If he secured 60 percent marks in the test and all questions carried equal marks, then what is the number of questions in the test?
Explanation
Since the candidate secured 60% marks, the number of questions he attempted and got correct (12) is 60% of the total questions.
So, 12 = 0.6x
x = 12 / 0.6
x = 20
Therefore, the correct answer is 20.