An inspection by the superintendent of Delhi Public School was scheduled on the next day. The class teacher Shraddha Kapoor knew that he would be asking questions from her class and she would have to choose a pupil to answer. To offer a perfect impression over him, the teacher explained certain instructions to the students to maximize the chances of getting correct answer every time.
What did she say to the students?
Shraddha drilled the students to raise their hands with a condition. Those who knew the answer must raise their right hand and those who didn’t must raise their left hands. So she will know whom to choose from all.