A candidate attempted 12 questions and secured full marks in all of them. If he obtained 60% in the test and all questions carried equal marks, then what is the number of questions in the test?
- A36
- B30
- C25
- D20Correct
Explanation
The logic to solve this problem is as follows:
Let the total number of questions in the test be X.
The candidate answered 12 questions correctly and secured full marks in all of them. This means his score is equivalent to the value of 12 questions.
The problem states that this score represents 60 percent of the total marks in the test. Since all questions carry equal marks, 12 questions represent 60 percent of the total number of questions.
The equation is: 60 percent of X equals 12.
To find X, divide 12 by 0.60. 12 divided by 0.6 is equal to 20.
Therefore, the total number of questions in the test is 20.
Correct Option: D
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