question

 

a man takes 5 hours to walk to a certain place and returns by car. he would have, however, gained 3 hours if he had completed his entire journey by car. how long would he have taken to walk both ways?

 

 option 1)
  

 5 hours

  
 
 option 2)
  

 6.5 hours

  
 
 option 3)
  

 7 hours

  
 
 option 4)
  

 8 hour

  
 
 option 5)
  

 6 hours

  
 

walk + car = 5 hours

car + car = 2 hours

car = 1

walk = 5-1 => 4 hours

time taken to go and return by walking = 4 x 2 => 8 hours