Queue Problem

[vishalhak]

let me guess the answer , the correct answer is 10 meters as the initial position of first soldier is the final position of the last soldier

[Archana Kannouj]

Hi,

Tell me friends if my approach is correct or not?

• Lets the speed of last soldier as A is V1 and of first soldier as B is V2
• The only thing same in cases is Time.
• Lets the distance traveled by A to meet B is 10+X, means total distance traveled by A is 10+2X and by B is 10
  • When A meet B:
    • Time is same, so time = dist/speed
      • (10+X)/V1 = X/V2
      • (10+X)V2 = X .V1-----(i)
  • When A return back to position:
    • Again time is same :
      • (10+2X)/V1 = 10/V2
      • (10+2X)V2 = 10 .V1-----(ii)
• Dividing equation i/ii
  • U will get X = sqrt of 50 ~ 7.07
  • Distance Traveled by A = 10+2X = 24.1 m

~Archana

[crook]

Archana & LORD_EC got the solution!

Congratulations!