a car moves with a speed of 140 km/hr for 15 minutes and 280 km/h for the next 15 mins. find the total distance covered by the car.
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Answer:
1st speed 140km/hrs
time 15mins =15/60=1/4
distance 140×1/4= 25km
and
2nd speed 280km/hrs
time 15mins=15/60=1/4hrs
distance =280×1/4= 70km
thus total distance =25+70=95km
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