search
Q: Mohit goes to his office at the speed of 10 m/s and returns to his home at the speed of x km/hr. If average speed of Mohit for the whole journey is 12 m/s, then what is the value of x?
  • A. 25 km/hr
  • B. 15 km/hr
  • C. 36 km/hr
  • D. 54 km/hr
Correct Answer: Option D -
answer image

Explanations:

explanation image