Question

I leave home for office at the same time everyday. If i drive at a speed of 10 kmph, i reach 5 minutes after reporting time. And if i drive at a speed of 15 kmph, i am 10 mins before reporting time. Find the distance between home and office.

Answer 1

Answer: distance is 30 km

Answer 2

Answer:

7.5km

Explanation:

15/10=t+(1/4)/t

3/2 = 4t+1/4t

12t - 8t =2

t = 1/2

15*1/2=7.5km