The following pie chart shows the number of tickets sold on a certain day. The total number of tickets sold on that day was 860. Find the number of student tickets sold on that day.

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Worked solution

10

1. Calculate the number of tickets sold to Singaporeans using the right-angle sector.

The sector for Singaporeans is $90^\circ$ , which is $\frac{90}{360} = \frac{1}{4}$ of the pie chart.
Number of Singaporean tickets = $\frac{1}{4} \times 860 = 215$

2. Subtract the known ticket numbers from the total to find the number of student tickets.

Number of student tickets = $860 - 172 - 353 - 215$
$= 860 - 740$
$= 120$

Answer

$120$ (option 1)

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The following pie chart shows the number of tickets sold on a certain day. The total number of tickets sold on that day was 860. Find the number of student tickets sold on that day.

Worked solution

10

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