Another brain teaser

[RWilson2526]

Ok, being that we are all just sitting around goofing off..... now you have to throw a guess out there. Anyone can do it with a calculator but the fun is hearing all the estimates that people put out.

You have a hole 1 mile square and 1 mile deep and it is full of water. you have a pump that pumps 1000 gallons per minute. How long would it take the pump to empty the hole?

 

[mudmagnet63]

Re: Another brain teaser

144 days

 

[tashasdaddy]

Re: Another brain teaser

my calculator doesn't go that high.

 

[JB]

Re: Another brain teaser

Is that salt water or fresh water?

 

[Drowned Rat]

Re: Another brain teaser

Wow, it's a rather surprising answer.

Thats 1,101,117,143,808 gallons of water.

It would take 45,879,880,992 days to drain it if the pump could consistently maintain 1000 gph.

Thats 125,698,304 years.

So in the year 125700312 A.D., it will be empty.

I'm sure we'll all look forward to that.

 

[mudmagnet63]

Re: Another brain teaser

Wekk at least I was close

 

[guy74]

Re: Another brain teaser

he said 1000 gal per minute, thats 764664.68 days or 2093.5 years, still a surprising answer. Guess thats why 1000 gpm is a small pump

 

[Lakester]

Re: Another brain teaser

hello,

my calc got salt water in it, and i havent had time to fush it out...'sides a seal is leaking now...

regards,

lakester

 

[muskyone]

Re: Another brain teaser

why drain it toss some fish in and call it good

 

[bassboy1]

Re: Another brain teaser

why drain it toss some fish in and call it good

How on earth are you going to dropshot a brushpile that is a mile deep? Bring it down to 30 feet or so, and I'll be happy.

 

[muskyone]

Re: Another brain teaser

dont drop shot for muskys much

 

[roscoe]

Re: Another brain teaser

850 million minutes

 

[SgtMaj]

Re: Another brain teaser

I see the no calculators thing lasted a whole 35 minutes...

 

[achris]

Re: Another brain teaser

.... pumps 1000 gallons per minute....

Is that a gallon or a US gallon?

If it's a gallon, then it will take 2,093 years and 6 months.
If it's a US gallons, then it will take 2,516 years.

Chris..........

 

[SgtMaj]

Re: Another brain teaser

Less than 2 years. Reason why it's so low? You're not taking evaporation or the "borrowing" by northern california for irrigation into account.

 

[aspeck]

Re: Another brain teaser

dont drop shot for muskys much

 

[Drowned Rat]

Re: Another brain teaser

Is that a gallon or a US gallon?

If it's a gallon, then it will take 2,093 years and 6 months.
If it's a US gallons, then it will take 2,516 years.

Chris..........

It doesn't matter. A square mile is a square mile.

 

[achris]

Re: Another brain teaser

It doesn't matter. A square mile is a square mile.

Oh, contrair, it does in deed matter. If the pump is in US gallons, then it is only pumping 3780 litres a minute. If it's gallon, then that 4550 litres a minute....

 

[Drowned Rat]

Re: Another brain teaser

Oh, contrair, it does in deed matter. If the pump is in US gallons, then it is only pumping 3780 litres a minute. If it's gallon, then that 4550 litres a minute....

I see what you're saying. Good point!

 

[guy74]

Re: Another brain teaser

Is that a gallon or a US gallon?

If it's a gallon, then it will take 2,093 years and 6 months.
If it's a US gallons, then it will take 2,516 years.

Chris..........

I just did the math, it would be approx 2093.5 years with all figures in US gallons. FYI there are 7.48052 US gal per cubic FT.