A and B start from house at 10am. They travel on the MG road at 20kmph and 40 kmph. there is a Junction T on their path. A turns left at T junction at 12:00 noon, B reaches T earlier, and turns right. Both of them continue to travel till 2pm. What is the distance between A and B at 2 pm

• 160km..
  at 12 A will travel=20*2=40km
  B will travel this 40 km in 40/40=1 hr i.e. by 11am.
  after T junction for A- distance travelled =2*20=40 km
  for b distance travelled =40*3=120
  so distance between A & B is=120+40=160km
• 10 years agoHelpfull: Yes(27) No(0)
• 160
  A=40 after reaching T
  B=120 after reaching T
  total=120+40=160
• 10 years agoHelpfull: Yes(3) No(0)
• answer - 160 km
  A reached to junction in 2 hr.(12:00 noon) it means total distance is 40km upto T. and it means B travels that 40 km in 1 hr . again they both have to travel 2hr . So total distance travell by A in 2hr . from junction in 40km , and total distance travell by B in 2hr is 80 km ,but B is 40 km fast (20(A)+20(A)+40(B)+40(B)+40(B)) = 160
  
• 10 years agoHelpfull: Yes(2) No(0)
• 160 km
  At 12:00 noon B reaches earlier at T because speed of B is double than A.
  so B reaches at 11:00 AM after that he turns right, since it has given that he has to continue till 2:00 noon. At that time B covers a distance 120km while A covers 40 km after junction T on left side.
  120+40=160
• 10 years agoHelpfull: Yes(1) No(0)
• 160km
  A goes 40 km from T at 12noon,
  B goes 120 km from T at 11am
  120+40=160km
• 10 years agoHelpfull: Yes(1) No(0)
• HOW COULD YOU ADD TWO DISTANCE.??? IT SHOULD BE 120-40=80.COULD U PLZ EXPLAIN WHY U HAVE ADDED TWO DISTANCES?
• 9 years agoHelpfull: Yes(1) No(0)
• 160 KM, initial point to T distance is 20*(12-10)=40km
  because at 2:00 pm in 2 hr distance travel by A is 40 km while the distance travel by B in 3hr is 120km
  then a total distance between them is 40+120=160
• 9 years agoHelpfull: Yes(1) No(0)
• A B start with 20 s 40 resp .
  at 12 A cover 40 means 2 hr for A.
  B cover this dist in 1 hr .
  turn opps direction and travel till 2
  time remain for A=2hr D=2*20=40......(1)
  time remain for B=3hr D=3*40=120.....(2)
  total distance=(1)+(2)=160
• 10 years agoHelpfull: Yes(0) No(0)
• 160
  
  
  
  
  
  
  
  
  
  
• 10 years agoHelpfull: Yes(0) No(0)
• ans:160km
  A reach with 2okmph on junction at 12 pm but B reach with 40kmph on junction at 11 am so
  A will cover 20*2=40km at 2pm and B will reach 40*3=120km at 2pm so
  40+120=160km
• 10 years agoHelpfull: Yes(0) No(0)
• A reaches T in 2 hrs @ 20kmh then B will reach T in 1 hr @ 40kmh
  SO B will reach at 11:00 a.m
  In 3 hrs B will travel 40*3=120km
  And in 2 hrs A will travel 20*2=40 km
  So,distance 120+40=160 km
  
• 10 years agoHelpfull: Yes(0) No(0)
• ya differnce means we need to subtract the two distances why we are adding pls any one tell
  
• 9 years agoHelpfull: Yes(0) No(0)
• when A reached to junction T. time is=10am to 12 noon= 2 h,
  distance = 2*20=40
  so B reached early because speed is 40kmph, so B time =40/40=1 h.
  A time = 12 nooon to 2 pm= 2 h.Similarly,
  B time=11 to 2 pm=3h
  Total distance between A to B is=(2*20)+(3*40)
  =40+120
  =160= Ans.
• 5 years agoHelpfull: Yes(0) No(0)