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ICSE Class 7 Answered

A car, running at 45 km/hr, takes 6 hours to cover a journey. At what speed must it travel in order to complete the journey in 5 hours?
Asked by Topperlearning User | 19 Sep, 2016, 02:27: PM
answered-by-expert Expert Answer

Speed space of space the space car space equals space 45 space km divided by hr Time space equals space 6 space hr Distance space equals space Speed space cross times Time space equals 45 cross times 6 space equals 270 space km Now comma space time space equals space 5 space hrs distance space equals space 270 space km therefore New space speed space equals space distance over time equals 270 over 5 km divided by hr equals 54 space km divided by hr

Answered by | 19 Sep, 2016, 04:27: PM

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