A bullock cart has to cover a distance of 80 km in 10 hours If it covers half of the journeys in 3 5...........

Quantitative Aptitude ( CCS) Time & distance

A bullock cart has to cover a distance of 80 km in 10 hours. If it covers half of the journeys in (3/5) the time. What should be its speed to cover the remaining distance in the time left?

8 km/hr

20 km/hr

6.4 km/hr

10 km/hr

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Explanation:

Total distance to be covered in 10h = 80 km.
But it covers 40 km in 3/5 th of time. ie., 40 km in 6 hr.
Required time = 10 - 6 = 4h
And remaining distance = 40 km.
Thus required speed = 40 / 4 = 10 Km/hr.

Hence, option 4 is the correct answer.