The distance b/w Delhi and Agra is 200 km. A train travels the first 100km at a speed of 50km/h. How fast must the train travel the next 100km, so as to average 70km/h for the whole journey?
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The train take a 100 km/ h
because it cover a 100 km
and left 100 km
for cover 200 km distance
when it decrease the speed 35 km it's use 70 km / h only then
because it cover a 100 km
and left 100 km
for cover 200 km distance
when it decrease the speed 35 km it's use 70 km / h only then
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