Question

The distance from a boy's house to his school is 10km. He left home at 6:30am,cycling at the rate of 4km/h. If he spent 15mins on the way waiting for a friend, when did he get to school?

Answer 1

Answer: 9.15 am

Explanation:

Time = distance / speed

= 10 / 4 = 2.5 hours = 2hrs 30 minutes

He spends 15 minutes waiting

2.30 + .15 = 2.45 hrs

He will teach school at 6.30 + 2.45 = 9.15 am