Question 391655: if two men swim across a three mile river,one at 4mph the other at 5mph,how long it will take for them to meet
Answer by lwsshak3(11628)   (Show Source):
You can put this solution on YOUR website! time = distance/speed
so, if we find the distance each swimmer covers, we can get the time they meet
let x = distance covered by first swimmer
1-x = distance covered by other swimmer
there is only one time involved, the time both swimmers meet
x/4 = (1-x)/5
4-4x =5x
9x =4
x=4/9 mi (distance covered by first swimmer
1-x = 5/9 mi (distance covered by second swimmer
time swimmers meet = (4/9)/4 =1/9hr or (5/9)/5 =1/9 hr
ans: swimmers meet in 1/9 hr or 6-2/3 minutes
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