A test containing 3 objective type of questions is conducted in a class. Each question has 4 options and…
A test containing 3 objective type of questions is conducted in a class. Each question has 4 options and only one option is the correct answer. No two students of the class have answered identically and no student has written all correct answers. If every student has attempted all the questions, then the maximum possible number of students who has written the test is
80
63
15
11
Solution
Total number of possible answer $=4 \times 4 \times 4=64$
Total answer given $=64-1=63$ Maximum possible number of students $=63$