Question
A man travelled a distance of 80 km in 7 hrs partly on foot at the rate of 8 km per hour and partly on bicycle at 16km per hour. The distance travelled on the foot is
Answer: Option D
Answer: (d)Journey on foot=x kmJourney on cycle = (80 –x)km$x/8 + {80 - x}/16 = 7$${2x + 80 - x}/16 = 7$x + 80 = 16 × 7 = 112x= 112 - 80 = 32 km. Using Rule 13,Let a man take 't' hours to travel 'x' km. If he travels some distance on foot with the speed u km/h and remaining distance by cycle with the speed v km/h,then time taken to travel on foot.Time = ${(vt - x)}/{(v - u)}$Distance travelled on foot = Time × u
Was this answer helpful ?
Answer: (d)Journey on foot=x kmJourney on cycle = (80 –x)km$x/8 + {80 - x}/16 = 7$${2x + 80 - x}/16 = 7$x + 80 = 16 × 7 = 112x= 112 - 80 = 32 km. Using Rule 13,Let a man take 't' hours to travel 'x' km. If he travels some distance on foot with the speed u km/h and remaining distance by cycle with the speed v km/h,then time taken to travel on foot.Time = ${(vt - x)}/{(v - u)}$Distance travelled on foot = Time × u
Was this answer helpful ?
More Questions on This Topic :
Latest Videos
Latest Test Papers
Submit Solution