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km an hour. How far from the starting po...

km an hour. How far from the starting point will B catch A? A starts walking at a speed of 4 km / h. After 4 hours, B goes cycling behind him at a speed of 10 km / h. How far will they both meet at the initial distance. (a) 16.7 km (b) 18.6 km (c) 21.5 km (d) 26.7 km

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