
Two runners A and B start simultaneously from the two points on the circle x2 + y2 = 16 where it cuts the Xaxis. The speeds of A and B are in the ratio 1 : 2 and they are moving in opposite directions. Bookmark Add Bookmark
If A starts from the point where the circle cuts the negative Xaxis, then find the distance covered by A before they meet
a)4pi/3
b)8pi/3
c)16pi/3
d)2pi/3
i am getting 8pi/3
but the answer is (a) how? 