Question

A man reaches his office, which is n km away, 9 minutes late if he travels at 8 km/hr.

Answer 1

the distance is 16 km.

How to find the distance (n)?

given that

the initial speed of man is 8 km/hr.

the final speed of man is 10 km/hr.

If a man speed is 8 km/hr, then he reaches office 9 minutes late.

If a man speed is 10 km/hr, then he reaches office 15 minutes before.

formula used:

distance = speed X time

Let the distance be n.

Now find the difference between the time by using given information.

$15 - ( - 9) = 24 \: minutes$

According to question, we already know that

$( \frac{n}{8} - \frac{n}{10} ) = ( \frac{24}{60} ) \\( \frac{n}{40} )= ( \frac{24}{60} ) \\ n =16\: km$

so, the distance is 16 km.

Learn more about distance, refer:

brainly.com/question/17146782

#SPJ9