Question
A man travels some distance at a speed of 16 km/hr and
returns at a speed of 12 km/hr. If the total time taken by him is 2 hrs 20 min, the distance isSolution
Let the distance travelled by a man be D km According to the question, Total time taken = 2 hrs 20 min = 2(20/60) = 7/3 hours Total time = T1 + T2 D/16 + D/12 = 7/3 (3D + 4D)/48 = 7/3 7D/48 = 7/3 D = 16 km
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