A car is traveling at the speed of 90 km per hour. Covered a distance of 450 km, Calculate the time taken?
- 1/5 hrs
- 5 hrs
- 360 hrs
- 540 hrs
Explanation
Convert the speed from km/hr to km/s:
Given speed = 90 km/hr
1 km = 1000 m
1 hr = 3600 s
Speed = 90 * 1000 / 3600 = 25 m/s
Calculate the time taken using the formula time = distance / speed:
Given distance = 450 km = 450000 m
Time = 450000 m / 25 m/s = 18000 s
Convert the time from seconds to hours:
1 hr = 3600 s
Time = 18000 s / 3600 = 5 hrs
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