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: jogging, volleyball or fencing. 34 of them voted for either jogging or volleyball. 25 of them for either volleyball or fencing. 36 of them voted for volleyball. 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: jogging, volleyball or fencing. 34 of them voted for either jogging or volleyball. 25 of them for either volleyball or fencing. 36 of them voted for volleyball. How many pupils took part in the survey?