One -third of certain journey is covered at the rate of 25kmph,one- – McqOptions

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1.	One -third of certain journey is covered at the rate of 25kmph,one-fourth at the rate of 30kmph and the rest at 50 kmph.Find the average speed for the whole journey.
A.	33.333 Km/hrs
B.	22.233 Km/hrs
C.	66.633 Km/hrs
D.	43.463 Km/hrs
Answer» B. 22.233 Km/hrs

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