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1 .


A train covers the distance from Delhi to Patna at the speed of 42 kmph and from Patna to Delhi at 48 kmph. What is the average speed of the train?

[ A ]    44.8 kmph right
[ B ]    45.5 kmph
[ C ]    46.6 kmph
[ D ]    43.9 kmph
[ E ]    None of these
Answer : Option A
Explanation :
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