Question

A train travel at a speed 50 km/ hr ,at 30 km/hr for next 0.26 hr and 70km/hr for next 0.76 hr What is the average speed of the train
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Answer 1

((30 × 0.26) + (70 × 0.76))/(0.26 + 0.76)

= (7.8 + 53.2)/(10.2) = 61/10.2

= 59.8 Km/hr

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