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2014-06-14T00:52:11+05:30

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First of all we will find the distance So distance = speed x time = 48x6 1/2 = 48x13/2 = 24x 13 = 312 kms now case second total distance = 312 kms and speed = 48km/hr for first 180 kms Time = d/ s = 180 / 48 = 90/24=45/12=15/4 now time taken in remaining = 132 kms Now time = d/s = 132/33 = 12 / 3 = 4 hrs Total time taken = 4 + 15/4 = 31/4 hrs
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