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31-03-2017
Mathematics

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A total of 364 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was three times the number of adult tickets sold. How many adult tickets were sold?

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apologiabiology apologiabiology

31-03-2017

a=adult tickets
s=student tickets

s+a=364

s=3 times a
s=3a
subsitute 3a for s

s+a=364
3a+a=364
4a=364
divide both sides by 4
a=91

91 adult tickets

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