A car moves at an average speed of 30kmh\(^{-1}\), how long does it take to cover 200 meters?

  • A 2.4 sec
  • B 24 sec
  • C 144 sec
  • D 240 sec
waec 2000mathematics

The correct answer is B. 24 sec

Speed = 30 kmh\(^{-1}\)

= \(\frac{30 \times 1000}{3600}\)

= \(\frac{25}{3} ms^{-1}\)

Time = \(\frac{Distance}{Speed}\)

= \(\frac{200}{\frac{25}{3}}\)

= \(\frac{200 \times 3}{25}\)

= 24 seconds

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