One day, a class teacher was told that the school superintendent will be visiting her class on the next day.
The superintendent would be asking questions from her class and the teacher will have the liberty to choose any pupil to answer the question.
Now she is determined that the impression that is cast upon the superintendent after the inspection should be great.
To offer a perfect impression over him, the teacher explained certain instructions to the students to maximise the chances of getting correct answer every time. What did she say to the students?
She asked all the students to raise their hands for every question that is being asked by superintendent. However, those who know the correct answers should raise their right hands and the rest should raise their left hands instead.
This way, she would be able to know the students who know the correct answers and choose any one of them to answer the question.
All the students raising their hands to each and every question would definitely leave a great impression on the superintendent.