Rates, SM-Bank 013

Johnno was standing 300 metres away from the stage at a rock concert.

If the sound travelled at 330 metres per second from the stage, how many seconds did the sound take to get to Johnno? Give your answer correct to 2 decimal places. (2 marks)

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\(0.91\ \text{seconds}\)

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\(\text{Time}\)	\(=\dfrac{\text{distance}}{\text{speed}}\)
	\(= \dfrac{300}{330}\)
	\(= 0.909090…\approx 0.91\ \text{(2 d.p.)}\)

\(\therefore \text{The sound takes approximately}\ 0.91\ \text{seconds to reach Johnno.}\)