Question

A firework display costs £28 800. The display lasts for 15 minutes. On average eight fireworks are set off every second. What is the average cost of one firework?

Answer 1

£4

Explanation:

To find the average cost of one firework, we need to divide the total cost of the firework display by the number of fireworks set off during the display.

First, let's calculate the total number of fireworks set off during the display. Since there are 8 fireworks set off every second, we can find the total number of fireworks set off in 15 minutes (900 seconds) by multiplying 8 by 900.

8 fireworks/second x 900 seconds = 7200 fireworks

Now, we can calculate the average cost of one firework by dividing the total cost of the display (£28,800) by the total number of fireworks (7200).

£28,800 / 7200 = £4

Therefore, the average cost of one firework in this display is £4.