Question

prateek walked to the town at a speed of 4miles/h and returned by riding a bicycle at a speed of 12 miles/h. the total time for the to and fro journey was 5/2 hours . find the time taken by him to travel on foot.​

Answer 1

15 hours or more than it

Answer 2

The time taken by him to travel on foot is 1.875 hours.

Step-by-step explanation:

Since we have given that

Speed at which he rides a bicycle = 12 milers/hr

Speed at which he walks = 4 miles/hr

Let the distance between them be 'x'.

Total time taken for the journey = $\dfrac{5}{2}=2.5\ hours$

According to question, it becomes,

$\dfrac{x}{4}+\dfrac{x}{12}=2.5\\\\\dfrac{3x+1x}{12}=2.5\\\\4x=2.5\times 12\\\\4x=30\\\\x=\dfrac{30}{4}\\\\x=7.5\ km$

So, time taken by him to travel on foot would be

$\dfrac{7.5}{4}=1.875\ hours$

Hence, the time taken by him to travel on foot is 1.875 hours.

# learn more:

A girl while riding a bicycle move with a speed of 10 km/h 2 hour and with speed 15km/h for next 3 hour find the total distance moved by her

and find average speed

https://brainly.in/question/4448980