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Samantha is estimating the number of people at a concert - Junior Cycle Mathematics - Question 6 - 2014
Question 6
Samantha is estimating the number of people at a concert. There are people sitting and people standing at the concert. (a) Samantha counts 52 rows of seats. She est... show full transcript
Worked Solution & Example Answer:Samantha is estimating the number of people at a concert - Junior Cycle Mathematics - Question 6 - 2014
Step 1
Estimate total number of people sitting
Answer
To find the total number of people sitting, we first round the number of people in each row to the nearest 10. Since Samantha estimates that there are 19 people in each row, we round this to 20.
Next, we calculate the total number of seats:
Therefore, the estimated total number of people sitting is 1000.
Step 2
Estimate total number of people standing
Answer
To estimate the number of people standing, we multiply the standing space by the average number of people per square metre.
Given the area is 600 m² and there are 2 people per square metre, we calculate:
Thus, the estimated total number of people standing is 1200.
Step 3
Estimate total amount of money paid for tickets
Answer
To find the total amount paid for tickets, we can use the estimates from parts (a) and (b).
- Estimated people sitting: 1000. Cost for sitting tickets: €15
- Estimated people standing: 1200. Cost for standing tickets: €10
The total cost can be calculated as follows:
Thus, the estimated total amount of money paid for tickets is €27000.