Question

bob leaves school and starts to walk home at a speed of 3 mph at the same time his sister starts to leave their home biking at a speed of 12 mph how far from their home is their school if they meet in 10 minutes

Answer 1

Answer: The distance between Bob's home and his school is 2.5 miles.

Explanation:

What is speed?

Speed is the distance covered in unit time.

Speed of Bob = 3mph

Speed of his sister = 12mph

Distance between Bob's home and his school = distance covered by bob in 10 minutes + distance covered by his sister in 10 minutes.

Distance covered by Bob in 10 minutes = 3*10/60 = 0.5 mile.

Distance covered by His sister in 10 minutes = 12*10/60 = 2 miles.

So, the distance between Bob's home and his school =0.5+2 = 2.5miles.

Therefore, the distance between Bob's home and his school is 2.5 miles.