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10. La car travels 40 km in 30 minutesand the heat 40 km in 40 minutesCalculate the average speed for theentire journey |
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Answer» Answer is 68.57 km/ hr 68.57 km/hr is the correct answer The Average speed will be the sum of both the speed divided by 2Speed=Distance/Time so 1st condition Speed = 40km/30min = 1.3332nd condition Speed = 40/40= 1Therefore average speed = 1.333+1 /2 = 1.6665 units 68.57 km/h is the average speed 68.57 km/hr is the correct answer |
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