27. Supriya is cycling on a circular track. She starts from point A and reaches point B in 20
minutes
(4 marks)
a) If the speed of her bicycle is 20 km/hr. calculate the distance covered by her and her
displacement as she cycles from point A to B?
b) She cycles from point B back to point A in another 40 minutes. Calculate her average
speed and average velocity in the entire journey from point A to point B and back to
point A
B​