DSSSB · Mathematics

A person runs 30 km at a speed of 15 km/h, 70 km at a speed of 35 km/h and 100 km at a speed of 25 km/h. What is his average speed for the entire journey?

  1. 22 km/h
  2. 24 km/h
  3. 25 km/h
  4. 28 km/h
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