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Mathematics for IGCSE & O level - Rates (Section 1 - No. 45)

How many kilometers per hour is 5 m/s?
15 km/h
18 km/h
20 km/h
25 km/h

Penjelasan

(5m/s * 3600 s/hr) / 1000 m/km = 18 km/h

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