Question
Billy has a bag of chocolate bars to distribute to his pupils. If he gives each pupil 7 chocolate bars, he will be short of 9 chocolate bars. If he gives each pupil 9 chocolate bars, he will be short of 21 chocolate bars. How many chocolate bars does he have in his bag?
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Billy has a bag of chocolate bars to distribute to his pupils. If he gives each pupil 7 chocolate bars, he will be short of 9 chocolate bars. If he gives each pupil 9 chocolate bars, he will be short of 21 chocolate bars. How many chocolate bars does he have in his bag?