River Crossing Version 2
A mother and daughter, a father and son, and a cop and criminal are trying to cross a river. But the raft can only hold 2 people at a time. Heres the rules:
- Only the mum, dad and cop can ford the rest across the river.
- The mum cant leave the daughter with the father.
- The son cant be left with the mother.
- The criminal cant be alone with anyone except the cop.
What the minimum amount of steps to get all 6 into the other side of the river?
Labels: SharedPuzzle
posted by Mr Fahrenheit at
7:10 PM
17 Comments:
Ok
1st-Father and Son
2nd-Mother And Daughter
3rd-Cop And Crimnal
3 steps
errr... obviously one has to remain in the boat to go back to the other side... im still figuring it out...
sigh~
1- father & son
father comes back
2- father & mother
mother comes back
3- cop & criminal
father comes back
4- mother & daughter
mother comes back
5- father & mother.
post #3... your step 3 is flawed...
if father comes back, mother get left with son on the other side...
No She wont... The son is on the other side with cop and criminal. Mother is still on the first side...
my bad... youre right... good work sir/ma'am
Or:
1)Mother & Daughter
Mother returns
2)mother & son
Mother returns
3)Mother & Father
Father returns
4)Cop & Robber
Mother returns
5)mother & father
Poor old mother does all the hard work though
Get two more rafts and cross in one step. :)
1.) Mother and Daughter
Mother comes back
2.)father and son
father comes back
3.)father and mother
father comes back
4.) Cop and Criminal
mother comes back
5.)father and mother
Or this could happen
While the mom and Daughter are getting on the raft the Criminal runs and the cop chases him which leaves
1.)father and son
Father comes back
2.)mother and Daughter
mother comes back
3.)father and mother
One is in 5 steps and the other is in 3 :D
1- Father & Son
Son comes back.
2- Son & Daughter
Father comes back.
3- Cop & Criminal
Son comes back.
4- Father & Mother
Father comes back.
5- Father & Son
Everyone is on other side.
Only 1 step is needed you cross the river without a raft it nevers says the never is impossible to cross.
"It nevers say the never"
? what does that mean?
Only 1 step is needed you cross the river without a raft it never says that the river* is impossible to cross sry.
This post has been removed by the author.
1) Father & son
2) Father comes back
3) Father & mother
4) Mother comes back
5) Cop & criminal
6) Father comes back
7) Mother & father
8) Mother comes back
9) Mother & daugther
1. Mother and Daughter
2. Mother comes back
3. Mother and Father
4. Father comes back
5. Father and Son
6. Son comes back
7. Police and Criminal
8. Father comes back
9. Father takes Son across
> QED - And that's the way you solve it.
ok it never said that they couldn't swim soo I'm gonna say:
they swim all at once
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