If a car covers 2/5th of the total distance with v1 speed and 3/5th distance with v2 then average speed is
(a) 12 π£1π£2
(b) π£1:π£22
(c) 2π£1π£2π£1 : π£2
(d) 5π£1π£23π£1 : 2π£2
If a car covers 2/5th of the total distance with v1 speed and 3/5th distance


