Time and Distance Practice Test 3 with solutions

Question : 31 of 40

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Pratibha covers a distance of 24 km at the speed of 8 km/hr and a distance of 18 km at the speed of 9 km/hr. Further she covers a distance of 12 km at the speed of 3 km/hr. What is her average speed in covering the whole distance?

8 km/hr
6 km/hr
5.5 km/hr
3 km/hr

Validate

Solution:

Required average speed =

{24 + 18+12}/{{24}/8+{18}/9+{12}/3}

{54}/9

= 6 km/hr

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