Question

please answer my question​

Answer 1

Your answer is (a)

Step-by-step explanation:

Sam start from A of the circle and made one round

So,time taken by sam=circumference of the circle

And billy start from center of the same circle and end at A

So,time taken by Billy=radius of the circle

So,ratio of time taken by Sam and Billy is circumference/radius

=2×22/7×r÷r

=2×22/7

=(a)