SOLUTION: a man completes a trip of 136 km in 8 hours some part of the trip was covered at 15 km/hr & remaining at 18 km/hr find the part of the trip covered at 18 km/hr.

Question 552555: a man completes a trip of 136 km in 8 hours some part of the trip was covered at 15 km/hr & remaining at 18 km/hr find the part of the trip covered at 18 km/hr.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
a man completes a trip of 136 km in 8 hours some part of the trip was covered at 15 km/hr & remaining at 18 km/hr find the part of the trip covered at 18 km/hr.
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t = time at 18 km/hr
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t*18 + (8-t)*15 = 136
Solve for t
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