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1. 75

   mathsloverposted 14 years ago

   A family of four was stranded on an island, two adults and two children. They then discivered a boat, which can only hold 200 pounds(the most) at a time. Each parent weighs 150 pounds and each child 50 pounds. How mant trips will it take to get the who family to the nearby city?

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   1. 61

      richtwfposted 14 years agoin reply to this

      5 trips

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   2. 0

      DoorMattnomoreposted 14 years agoin reply to this

      can one kid row or drive the boat?

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      1. 75

         mathsloverposted 14 years agoin reply to this

         then who would take it back?

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         1. 77

            Garrett Mickleyposted 14 years agoin reply to this

            ...the kid.
            
            Kid + parent, drop parent off, kid goes back, gets other kid, drops off, comes back for last parent.  3 trips.

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            1. 75

               mathsloverposted 14 years agoin reply to this

               if kid + parent go first and drop off parent. thats one trip. Then you have to go back for the other kid 2 trips. Then drop that kid to the city three trips. At this piont everyone is not at the city so it cant be 3 trips.

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               1. 77

                  Garrett Mickleyposted 14 years agoin reply to this

                  I thought a trip would be there and back.
                  
                  When you go on vacation, you don't call it two trips, it's just one trip.  There, then back.
                  
                  So I misunderstood.

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                  1. 80

                     camloposted 14 years agoin reply to this

                     That's what I thought, so I'll change my answer to 5.

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            2. 85

               Lily Roseposted 14 years agoin reply to this

               You're not counting the trips back.
               
               Parent + child go to city = 1 trip
               
               Parent left behind and child returns for 2nd parent = 1 trip
               
               2nd parent and first child go to city = 1 trip
               
               child left behind and a parent returns for final child = 1 trip
               
               parent and 2nd child go to city = 1 trip
               
               5 trips total, assuming the child is old enough or capable enough to make that 2nd trip back for parent #2...

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               1. 61

                  richtwfposted 14 years agoin reply to this

                  That's my answer too Lily Rose but poor old me has been ignored from the very being and my hand has been up in the air for a long long time and is getting tired now.

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   3. 64

      prettydarkhorseposted 14 years agoin reply to this

      4

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2. 60

   ediggityposted 14 years ago

   3 trips

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   1. 75

      mathsloverposted 14 years agoin reply to this

      it cant be three trips ediggity

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      1. 60

         ediggityposted 14 years agoin reply to this

         Why?
         
         See, Garrett got it right also.  Good job Garrett!

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3. 70

   Cagsilposted 14 years ago

   Define trip?
   
   One parent could go to the nearby city and get larger boat with better capacity, or even return with helicopter?
   
   If you can only use the boat, then it could be in done in one trip with a little ingenuity, both children in boat and parent swimming or slightly holding on to the outside.
   
   Since there is no determination of distance to the nearby city and trip is not defined either. I would go with one trip.

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4. 94

   Dolores Monetposted 14 years ago

   I have actually participated in such a venture only it involved a lot of camping equipment and trespassing on the property of a dead president.

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5. 80

   camloposted 14 years ago

   I'd say three times.

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6. 85

   Lily Roseposted 14 years ago

   Dontcha just hate it when someone starts a thread like this and leaves us all hanging?!  Oh, well....my hand is going down...

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   1. 61

      richtwfposted 14 years agoin reply to this

      Lily - I think you and I have the right answer even though we haven't been told officially what the correct answer is. My hand went down a long time ago.

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7. 85

   Lily Roseposted 14 years ago

   I agree, richwf.  Let's just consider ourselves winners and move on!

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   1. 75

      mathsloverposted 14 years agoin reply to this

      i guess the answer is five then, thats what i said when i was asked the question, thanks for answering this question guys

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      1. 61

         kathryn1000posted 13 years agoin reply to this

         This really cheered me up/Especially the idea of someone getting a helicopter etc.

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