Ram goes to his office from his house at a speed of 8 km/h and returns at a speed of 2km/h. If he takes four hours to go and come back, find the distance between the house and the office.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 6.4 km.
Let the one-way distance = x km
Time taken to go = hours
Time taken to return = hours
⇒ + = 4
⇒ = 4
⇒ 5x = 32
⇒ x = 6.4 km