A bus travels at a certain average speed for a distance of 75 km and travels a distance of 90 km at an average
speed of 10 km/hr more than the first speed. If it takes 3 hours to complete the total journey, find its original
speed?
Answers
Answered by
1
Answer:
50km/hr
Step-by-step explanation:
let the original speed be x
time taken to complete 75 km=75/x
therefore new speed will be x+10
time taken to complete 90 km=90/(x+10).
total time =3 hours
therefore....(75/x )+90/(x+10)=3
taking lcm and futher simplifying the equation,we get x=50 and -5 km/hr...
since speed can't be negative therefore original speed =50km/hr
Answered by
0
Answer:
44
Step-by-step explanation:
total distance divided by total time = x+10 answer would be 44
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