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(a)50R/l(d) 7o km/hr21. A man completes 30 km of a journey at 6 km/hr and the remaining 40 km in 5 hours. Find hisaverage speed for whole journey.4(a) 6-+ km/h(b).7 km/h(c)km/h(d) 8 km/h |
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Answer» Average speed = Total Distance / Total TimeTotal time = 11 km/hrTotal distance = 70 km Average speed = 70/11 = 6(4/11) km /hr (a) is correct option |
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