Question

Ravi goes to his office at the rate of
5 km/hr and reaches 3 minutes late.
However, if he travels at 15 km/hr, he is
5 minutes early. What is the distance of his
office from his residence ?​

Answer 1

Answer:

1Km

Step By Step Explanation:

Explained In Image

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Answer 2

Ravi goes to his office at the rate of

5 km/hr and reaches 3 minutes late.

However, if he travels at 15 km/hr, he is

5 minutes early. What is the distance of his

office from his residence ?

Step-by-step explanation:

Hi

let the require distance=1 km

Time taken to cover 1 km at 12.5 km/h=1/12.5=10/125 hr.

= 10/125×60=24/5=4.8minute.

Time taken to cover 1 km at 15km/h=1/15

=1/15×60=4 minute.

Difference in time taken=( 4.8-4)min=0.8minute.

But,actual difference in time=( 5+3)min=8minute.

If the difference in time is 8 min then distance.

=1/0.8×8=10/8×8=10 km answer.