rajesh rode his bicycle from home to city which is 4km away . it took him 8min time toreach city . in return journey he rode home using a shorter route of 3 km . this only took him 6min . what was the average speed in km /hr . for the journey home to city and back
Answers
Solution :-
given that ,
→ Distance = 4 km
→ Time taken to reach city = 8 min .
also,
→ Distance covered in return journey = 3 km
→ Time taken = 6 min .
So,
→ Total distance covered = 4 + 3 = 7 km
→ Total time taken = 8 + 6 = 14 minutes .
therefore,
→ Average speed = Total distance covered / Total time taken = (7/14) = (1/2) km / min .
now,
→ Distance covered in 1 min = (1/2) km
→ Distance covered in 60 min = (1/2) * 60 = 30 km .
Hence, the average for the journey home to city and back is 30 km/hr .
Learn more :-
While covering a distance of 30km.Sampath takes 2 hours more than Sannihith.If Sampath doubles his speed he would take 1...
https://brainly.in/question/46506959
A travels a certain distance with his usual speed. If he reduces his speed by 5 miles per hour, he
reaches 5 hours ate. ...
https://brainly.in/question/40732028
one day , hari walked along a circular track for 3 hours . he then cycled along the track for the time he would take to ...
https://brainly.in/question/40976068