Question
A group of pupils took part in a survey to vote for their favourite sport. Each pupil voted for only 1 type of sport: soccer, badminton or tennis. 37 of them voted for either soccer or badminton. 23 of them for either badminton or tennis. 24 of them voted for badminton. How many pupils took part in the survey?
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A group of pupils took part in a survey to vote for their favourite sport. Each pupil voted for only 1 type of sport: soccer, badminton or tennis. 37 of them voted for either soccer or badminton. 23 of them for either badminton or tennis. 24 of them voted for badminton. How many pupils took part in the survey?