# If a car covers 2/5 𝑡ℎ of the total distance with 𝑣1 speed and 3/5 𝑡ℎ distance with 𝑣2 then average speed is

Question : If a car covers 2/5 𝑡ℎ of the total distance with 𝑣1 speed and 3/5 𝑡ℎ distance with 𝑣2 then average speed is

(A) $\dfrac{1}{2}\sqrt{v_{1}v_{2}}$

(B) $\dfrac{v_{1}+v_{2}}{2}$

(C) $\dfrac{2v_{1}v_{2}}{v_{1}+v_{2}}$

(D) $\dfrac{5v_{1}v_{2}}{3v_{1}+v_{2}}$