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Master of math
A man travels a distance of 24 km at 6 km/hr, another distance of 24 km at 8 km/hr and a third distance of 24 km at 12 km/hr his average speed for the whole journen in km/hour is
average speed = total distance/total time…
soo…
24/6 = 4 hr 24/8 = 3 hr 24/12 = 2 hr
Total time = 9 hours Total Distance = 24*3 = 72
72/9 = 8km/hr (which is kinda obvious, if you average the 3 speeds [6+8+12/3] since it’s the same distance, but that’s the proper way to do it)
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