A) 7 kmph
B) 5 kmph
C) 12 kmph
D) 8 kmph
E) 9 kmph
Correct Answer: E
Solution :
Relative speed \[\text{=}\frac{\text{Total}\,\,\text{distance}}{\text{Total}\,\,\text{time}}\text{=}\frac{\text{50+80}}{\text{13}}\text{=10}\,\,\text{m/s}\] \[\therefore \]\[\text{10}\,\,\text{m/s=10 }\!\!\times\!\!\text{ }\frac{\text{18}}{\text{5}}\text{kmph=36}\,\,\text{kmph}\] Now related speed = Speed of bus - speed of car or, 36 = 45 - speed of carYou need to login to perform this action.
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