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A car travel 3 hours. In first hour it travelled 30 kilometre, 45000 m in second hour and 7500000 cm in third hour. Find average speed in kilometre per hour ​

Respuesta :

10n31y

[tex]45000 \: m \times \frac{1 \: km}{1000 \: m} [/tex]

45 km in the 2nd hour

[tex]7500000 \: cm \times \frac{1 \: m}{100 \: cm} \times \frac{1 \: km}{1000 \: m } [/tex]

75 km in the 3rd hour

[tex] \frac{(75 - 30)}{(3 - 1)} [/tex]

22.5 km/h

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