A bus travelling the first one third distance at a speed of 10 km/h, the next one fourth at 20 km/h and the remaining 40 km/h. the average speed of the bus is
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A bus traveling the first, one-third distance at the speed of 10 km/hr. The bus travel remaining distance in 40 km/hr. => 18 km/hr (approx.) ∴ Average speed of the bus is 18 km/hr.
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