Question

2. A man covers 50% of his journey at 40 kmph., 30% at 60 kmph, and the
remaining at 40 kmph. Find the average speed of the whole journey. (kmph.)
(A) 41",
(B) 4231
(C) 444
(D) 474,​

Answer 1

Answer:

• avg velocity is total dist /total time
• let the total dist travelled be s