Manish travels a certain distance by car at the rate of 12 km/h and wa...
You can solve this question using the options. Option (a) fits the given situation best as if we take
the distance as 12 km he would have taken 1 hour to go by car and 4 hours to come back walking
—a total of 5 hours as given in the problem.
View all questions of this testManish travels a certain distance by car at the rate of 12 km/h and wa...
Manish travels a certain distance by car at the rate of 12 km/h and wa...
Given:
- Manish travels a certain distance by car at the rate of 12 km/h and walks back at the rate of 3 km/h.
- The whole journey took 5 hours.
To find: What is the distance he covered on the car?
Solution:
Let's assume that the distance covered by car = x km.
Then, the distance covered by walking = x km.
Time taken to cover x km by car = x/12 hours.
Time taken to cover x km by walking = x/3 hours.
Total time taken = (x/12) + (x/3) = 5 hours.
Simplifying the above equation, we get:
(4x + 12x)/36 = 5
16x + 12x = 180
28x = 180
x = 6.43 km (approx)
Therefore, the distance covered by car = 6.43 km, which is closest to option A (12 km).
Hence, option A is the correct answer.