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ICSE Class 7 Answered

A car covers the distance of 160km between two cities four hours. What is the average speed of the car?
Asked by Kinshukchhikarajr1957 | 23 Oct, 2018, 07:36: PM
answered-by-expert Expert Answer
Distance (d) = 160 km = 160000 m
Time (t) = 4 h = 4 x 3600 = 14400 s
 
A v e r a g e space s p e e d space equals space fraction numerator d i s tan c e space over denominator t i m e space end fraction space equals space fraction numerator 160000 space m space over denominator 14400 space s end fraction space equals space 11.11 space m divided by s space o r space A v e r a g e space s p e e d space equals space fraction numerator d i s tan c e space over denominator t i m e space end fraction space equals space fraction numerator 160 space k m over denominator 4 space h end fraction space equals space 40 space k m divided by h
Answered by Shiwani Sawant | 24 Oct, 2018, 12:20: PM

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