Minimum Participant
Probability
Level
2
A test consisting of 20 questions. if the answer is correct then +2, if the answer is left empty then 0 and if the answer is wrong then -1. how many minimum participants must participate to guarantee so that there are three equal scores.
125
127
121
123
None of these
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Min Score = -20, Max Score = 40. Except for score (39). So there are (1+40-(-20))-1=60 holes and there must be 121 pigeons to guarantee there are three equal score.