A man performs 2/15 of total journey by train,9/20 by tonga and the remaining 10 kms on foot. total journey is ?

A. 30


B. 20


C. 24


D. 21


E. 23

• C.24
  
  1-((2/15)+9/20)=1-35/60=25/60=5/12
  5/12 of x=10km(Remaining)
  x=10*12/5=24
• 10 years agoHelpfull: Yes(10) No(0)
• its 21...
  let x be the total distance.. after performing 2/15 of distance, the remaining distance will be 13x/15.. and after performing 9/20.. the remaining distance will be 715x/1500 and putting it equal to 10km.. solving it for x.. its 21
• 10 years agoHelpfull: Yes(0) No(1)
• (1-((2/15)+(9/20)))*x=10
  => x = 30 (approx)
• 9 years agoHelpfull: Yes(0) No(1)
• ans;20
  sorry
• 8 years agoHelpfull: Yes(0) No(1)
• ANSWER :
  
  Let the total distance = x km
  
  Distances travelling by
  Rail tonga and by toot =2/15x+9/20x+10
  
  
  
  (2/15x+9/20x)+10=x
  [(2×20)+(9×15)/15×20]x+10=x
  
  175/15×20 x +10=x
  
  7/12 x +10= x
  X-7/12 X =10
  
  
  12X-7X/12=10
  
  
  
  5X/12=10
  
  X=10×12/5
  
  
  
  
  ANSWER :
  
  X=24
  
• 7 years agoHelpfull: Yes(0) No(1)