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Pranay's Riddle Time

deletedover 9 years

As pranay is unfairly forum banned, I must post this for him

Riddle Island

3 Friends are stranded on an island

  1. Giga
  2. Rutab
  3. Connor

The island has nothing but sand on it.
The island is flat, and has the following shape:

with dimension
Angles
A= 78 degrees
B=19 degrees
C=234 degrees
D=29 degrees

AB= 500 meters
BD= 450 meters

There is no tree or anything behind which you can hide from sight.
No matter where you are on the island, you can see anybody who is standing or sitting or sleeping anywhere on the island.
Each one is wearing a shirt, shorts, undergarments, pair of shoes and pair of stockings.

Giga has a lighter which can give you a flame for exactly 2 hours. The lighter is exactly 10 cms long.

Rutab has a gun with exactly 1 bullet in it. One bullet can kill only one person. He can't use that bullet to kill two people by firing it through one of them. The bullet always bursts inside the body on impact. The gun is exactly 30cms long.

Connor has I-Phone 6. He has switched it off to save battery, when he figured that his phone can stay on for exactly 6 hours. He does not have his phone charger. There no connection to make a phone call. There is no time lag when he switches his phone on/off. It happens instantly. So he can use the phone for 6 hours exactly. The phone is exactly 20cms long.

Kerry has a special power. She can find the location of Connor if she is not able to talk to Connor for 168 hours. She talked to Connor exactly 24 hours before theTime= t. She can't find his location unless those 168 hours pass. Once she finds him, she takes 24 hours to reach connor with food supply enough for several days.

Once she finds the location, she can ask Pranay to retrieve Connor from any corner of the planet.

They have food supplies for exactly 72 hours. They will die at exactly t+72. Where t is the time when they started on the island.

There is no fish near the shore, or even within their reach. No food on the island. But if one of them happens to eat 10Kg of flesh of the other person, they can survive another 24 hours.

Giga weighs 80 Kgs
Connor weighs 60Kgs
Rutab weighs 90 Kgs

Lets assume all the weight belongs to the flesh

Also each one of them knows that Pranay will find them if they stay on the island for exactly t+240 hours

Pranay will rescue everyone alive on the island

Each one of them requires sleep for exactly 6 hours after 18 hours of being awake, else they will die. This means they always sleep at the same time. One can’t be killed if they are awake. Even if the person in front is holding a gun.

Connor can get a signal on his phone if he manages to keep his phone in a position such that the line joining the phone and connor’s shoes is parallel to the line joining rutab’s gun and giga’s lighter, and the length of the line is same. He gets just one try. So if they do hit and trial, it wont work.

Each one of them knows about all the above

What each one of them can do so that

  1. All 3 survive (whether possible or not)
  2. 2 of them can survive ( mention for all combinations, whichever possible)
  3. Can survive alone (for all those that is possible)
deletedover 9 years
a line is always parallel with itself
over 9 years
I'll figure out another way on my lunch break but I disagree, the two line segments would be parallel
deletedover 9 years
@steven- if you keep one object on the other, then they are the same line, not parallel

i disagree with this but that's pranay's rules
over 9 years
Pranay you can keep all of the objects on the same shore and they will have the same slope, therefore parallel
deletedover 9 years
@steven- you can keep two of the objects on the shore, but the other two objects, you don't know if you kept them parallel to the first two.
over 9 years
You can use other objects that are more straight such as a shirt to align even that with the shore if you wanted them to be parallel too.

Actually lol, what am I even doing? Just make the distance between them be 0 and align everything with the shore, problem solved. No need for anything to be measured
over 9 years
You don't need the shoes to be parallel, you use the shoes to measure the space in between the objects. As long as the objects are parallel to the shore (just align them with the border of the shore) it shouldn't be a problem.
deletedover 9 years
[04:04:29 PM] pranay: @steven - the shoes will not be parallel , because you can't keep them in perfect parallel lines. suppose you keep one shoe here, then you can't keep the other shoe perfectly parallel to the first one, or parallel to the shore. you might keep it at an angle infinitesimally small. so you might mishit
[04:04:36 PM] pranay: thus not a sure thing
[04:04:38 PM] pranay: please post this
over 9 years
Wait are we supposed to assume pranay still takes t+240 even if he's called?
over 9 years
Agreed, unless I missed a condition or something
deletedover 9 years
[02:50:56 PM] pranay: can you post that its the simplest riddle of all time and i might post the answer in the next 12 hours
over 9 years
Because they are aligned with the shore they will be parallel, and because of the shoes of the other person they will be the same size (like the things will be in contact with the shoe so there's no space missing, and then if it interrupts the signal you just remove the shoe)

Connor gets his call, calls pranay, hurray
over 9 years
Okay actually I can solve this without doing any of the stuff you want me to do.

Rutab Connor and Giga get together near the shore, Connor and someone else takes off their shoes. They all align the needed stuff with the shore (therefore it's parallel) and to measure exact lengths they put the other persons shoes in between the things (assuming of course they will be the same size, which should be the case.

Trigonometry gets wrecked
over 9 years
Why does the shape of the island matter again?
over 9 years

Nonon says

[02:18:16 PM] pranay: " i am expecting steven to solve this riddle"


Don't worry pranay, I will. Give me a day, as usual, so I can find some free time.
over 9 years
since she takes 24 hours after locating him to find him. (168 - 24) + 24 = 168. 96 hrs + 72 hrs = 168 hours

bam
over 9 years
for connor to survive, he eats 30kg of rutab and 10kg of giga to sustain him for 96 + the 72 hrs of food supplies, which gives him enough time for kerry to find him.
over 9 years
does eating 10kg of flesh add that weight to the person who ate it
deletedover 9 years
[02:18:16 PM] pranay: " i am expecting steven to solve this riddle"
over 9 years
Haha Connor and Giga have stockings
over 9 years
Never mind, apparently 10kg flesh makes you survive 24 hours. So one of them Has to die, or there is no way to survive. Probably rutab, he is the fattest one.
over 9 years
it must suck for him to put that much effort in a riddle
over 9 years
Oh, so they cant sleep whenever they feel like? This is rigged.

If Connor falls asleep when the others are awake, i think he could do it?
over 9 years

ZeroFurrbone says

Connor kills Rutab while Rutab is sleeping, shoots Giga, eats them both and survives 168 hours. Then he is saved, everyone lives happily ever after. Connor is now a canibal and eats human flesh. The End.

P.S. I may try to do a murder mystery and see who can solve it :3


Each one of them requires sleep for exactly 6 hours after 18 hours of being awake, else they will die. This means they always sleep at the same time. One can’t be killed if they are awake. Even if the person in front is holding a gun.

I tried your solution. But this condition. It means connor has to sleep when others sleep.
over 9 years
Connor kills Rutab while Rutab is sleeping, shoots Giga, eats them both and survives 168 hours. Then he is saved, everyone lives happily ever after. Connor is now a canibal and eats human flesh. The End.

P.S. I may try to do a murder mystery and see who can solve it :3