To calculate the time the boy arrived at school, we need to determine how long it took him to cycle the 10km distance and then add the 15 minutes he spent waiting for his friend.
Time taken to cycle 10km at a rate of 4km/h:
Distance = Speed x Time
10km = 4km/h x Time
Time = 10km / 4km/h
Time = 2.5 hours
Since the boy left home at 6:30, he arrived at school:
6:30 + 2.5 hours = 9:00
Adding the 15 minutes he spent waiting for his friend:
9:00 + 15 minutes = 9:15
Therefore, the boy arrived at school at 9:15.
the distance from a boys house in o school is 10km. He left home at 6:30, cycling at the rate of 4km/h. If he spent 15minutes on the way waiting for a friend , when did he get to school
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