It takes a train to travel 45min from A to B. when the speed of the train is reduced to by 5kmph the new time taken is 48min. what is the distance between A and B.
options
1.60 2.65 3.70 4.80

• distance(A to B) = 45/60*x
  after speed reduction d = 48/60*(x-5)
  45/60*x = 48/60*(x-5)
  x = 80kph
  distance = 80*45/60= 60 ANS.
• 10 years agoHelpfull: Yes(40) No(1)
• let distance between A and B be x km then
  speed of train = x/(45/60)= 4x/3 km/h
  
  after reducing speed by 5km/h,time taken by train
  x/(4x/3 -5)= 48/60
  => 60x=64x-48*5
  => 4x=48*5
  => x=60 km
• 10 years agoHelpfull: Yes(17) No(1)
• Let distance =d as speed= distnce/time
  so
  60d/45 - 60d/48 = 5
  
  ans=60km
  
• 10 years agoHelpfull: Yes(11) No(1)
• v1=d/45 and v-5 = d/48 . solving it we get 80kph
• 10 years agoHelpfull: Yes(2) No(4)
• ans 1)-60
  assume the distance=x km and speed=y kmph
  x/y=45/60 y=4x/3,
  and new speed x/y-5=48/60=4/5
  5x=4y-20
  now after putting the value of y=4x/3 in this equation, we get-
  5x=16x/3-20
  on solving- x =60kmph
  
  
• 10 years agoHelpfull: Yes(2) No(1)
• old time : 45 mins=45/60hr and speed =x
  new time :48 mins=48/60hr and speed=x-5
  since the distance is same, equating the distance in both cases:D=T*S
  4560*x=48/60*(x-5)
  solving above equ we get x=80
• 10 years agoHelpfull: Yes(1) No(6)
• 80kmph
  3x/4=4x/5-5
  x=80km
• 10 years agoHelpfull: Yes(1) No(4)
• here distance d is same,and speed1 as s after reduction speed2 as (s-5)
  so s1t1=s2t2 then
  s(45/60)=(s-5)(48/60)
  3s=240
  s=80
  distance=speed*time
  d=80*(45/60)
  d=60km
  
• 10 years agoHelpfull: Yes(1) No(1)
• Answer will be 60 km/h.
  A__________B
  let speed is x km/h.
  we know s=v*t
  45 min=3/4 h and 48 min=4/5 h.
  for the first time,s=x*(3/4)km
  and second time speed is x-5 km/h
  so, s=(x-5)*(4/5)km
  now, comparing these x=80km/h
  hence s=80*3/4=60km
• 10 years agoHelpfull: Yes(0) No(0)
• let distance bw A AND B is x;
  and speed at initial be a;
  so x/a=3/4 and x/(a-5)=4/5;
  taking l.c.m of numerator of both got value 12;
  one will be 12/16 and other 12/15;
  since, denominator diff. is 5 so multiply both the term by 5 we will get x=60;
• 10 years agoHelpfull: Yes(0) No(0)