A stadium can hold 20,000 people when it is full. The table below shows the
number of people that attended concerts at the stadium over a 3-day period.

Day Number of People
Friday 17,563
Saturday 18,126
Sunday 16,618

If the stadium had been full for each of the concerts, how many more people
would have attended the concerts over the same 3-day period?

If full then the stadium could have held 60000 people over 3 days.
It really held 17563+18126+16618 over the 3 days = 52307 people. To work out the difference 60000 - 52307 = 7693
Therefore 7693 seats were free over the 3 day period and so 7693 more people could have attended the concerts overall

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