# HB921

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## HB921's Activity

1. HB921 added a post in a topic

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I agree
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10. HB921 added a post in a topic

He told them "Just get this over with you idiots and split the fortune, And yea, I'll take 10% "
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11. HB921 added a post in a topic

@Donjar:

The puzzle assumes perfect conditions like most other puzzles.
There is no drag effect and the hat won't sink.
The speed of hat relative to the water is 0
There are no holes in the Hat
It will not drift to the bank.
Also, it assumes that the speed of the river is same in all planes, irrespective of the distance from the bank (which is again unreal)
The friction between all surfaces is equal
The time gap between Hat falling off and starting to flow with the river is 0
The gravitational pull is equivalent to that of the Earth
It also assumes, that wind speed is 0miles/hr and it's not raining/snowing etc etc.
Basically, it acts as a point object and so does my boat

I apologize for assuming.
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Thank you! My first reaction was No but then I gave it a thought and I was amused. Nice puzzle!
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15. HB921 added a topic in New Logic/Math Puzzles

This is a fairly easy puzzle but I'm looking for the right thought process

I was rowing a boat upstream at a speed of 3 miles/hr (the best I could do) on a river flowing at 5 miles/hr. I dropped my hat off and realised it after 35 minutes. So, I immediately turned around and rowed my boat with the 'same effort' that I had put in to go up the stream. How long will it take me to reach my hat, if I ever will. (Please note that the hat is constantly moving away with the river)
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