Question
A man complete a journey in 15 hours. He travels first
half of the journey at the rate of 6 km/hr and second half at the rate of 4 km/hr. Find the total journey in km?Solution
(x/2)/ 6 + (x/2) / 4 = 15 (2x + 3x) / 24 = 15 5x = 15 x 24 X = 72 km
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