A boy goes to his school from his house at a speed of 3 km.hr and returna at a speed of 2 km/hr. If he takes 5 hours in going and coming, the distance between his house adn school is
A. 5 km B. 5.5 km
C. 6 km D. 6.5 km

• C. 6 km
  
  average speed for two way distance = 2*3*2/(3+2) = 12/5 km/hr
  Distance covered in 5 hrs = 5*12/5 = 12 kms
  one way distance = 12/2 = 6 kms
• 13 years agoHelpfull: Yes(6) No(1)
• t1 + t2 = 5h
  x be distance
  x/3+x/2=5
  x=6km
• 7 years agoHelpfull: Yes(1) No(0)