A car moves with a speed of 30km/h-1 for half an hour 25km/h for one hour and 40km/h for two hours calculate the average speed of the car
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Total time for three distances
=(2+1+.5)hours
=3.5 hours
Total distance covered by the three speeds=(30+25+40)km= 95 km
therefore average speed= (95 ÷ 3.5) km/hr
=( 950 ÷ 35) km/ hr
= (27 +1/7 ) km/ hr{ ans}
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