10 DEBIT CARD IN AN ENVELOPE 10 CUSTOMERS PICK ONE EACH HOW RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

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10 Debit Card In An Envelope 10 Customers Pick One Each How Riddles To Solve

Solving 10 Debit Card In An Envelope 10 Customers Pick One Each How Riddles

Here we've provide a compiled a list of the best 10 debit card in an envelope 10 customers pick one each how puzzles and riddles to solve we could find.

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100 Blank Cards Riddle

Hint: Perhaps thinking in terms of one deck is the wrong approach.
Yes!

A sample strategy:
Divide the deck in half and turn over all lower 50 cards, setting aside the highest number you find. Then turn over the other 50 cards, one by one, until you reach a number that is higher than the card you set aside: this is your chosen "high card."

Now, there is a 50% chance that the highest card is contained in the top 50 cards (it is or it isn't), and a 50% chance that the second-highest card is contained in the lower 50. Combining the probabilities, you have a 25% chance of constructing the above situation (in which you win every time).

This means that you'll lose three out of four games, but for every four games played, you pay $40 while you win one game and $50. Your net profit every four games is $10.

Obviously, you have to have at least $40 to start in order to apply this strategy effectively.
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The 100 Seat Airplane

Hint: You don't need to use complex math to solve this riddle. Consider these two questions: What happens if somebody sits in your seat? What happens if somebody sits in Steve's assigned seat?
The correct answer is 1/2.

The chase that the first person in line takes your seat is equal to the chance that he takes his own seat. If he takes his own seat initially then you have a 100% chance of sitting in your seat, if he takes your seat you have a 0 percent chance. Now after the first person has picked a seat, the second person will enter the plan and, if the first person has sat in his seat, he will pick randomly, and again, the chance that he picks your seat is equal to the chance he picks someone your seat. The motion will continue until someone sits in the first persons seat, at this point the remaining people standing in line which each be able to sit in their own seats. Well how does that probability look in equation form? (2/100) * 50% + (98/100) * ( (2/98) * 50% + (96/98) * ( (2/96) * (50%) +... (2/2) * (50%) ) ) This expansion reduces to 1/2.
An easy way to see this is trying the problem with a 3 or 4 person scenario (pretend its a car). Both scenarios have probabilities of 1/2.
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The 100 Pound Watermelon

Hint:
50 pounds.

In the beginning it is 99 pounds water and 1 pound other stuff. At the end the 1 pound other stuff is 2 percent so the total weight is 50 pounds. 50 pounds - 1 pound other stuff = 49 pounds water. So 99 pounds - 49 pounds = 50 pounds water lost.
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A 100 Year Old Ant

Hint:
An antique!
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Halfway To 100

Hint:
50
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I Am Close To 100

Hint:
98.
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Add Up To 100 Riddle

Hint:
1+2+3+4+5+6+7+(8x9)=100
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100 Widgets Riddle

Hint:
It would take 5 minutes. Each machine takes 5 minutes to make its widget. Therefore, each of the 100 machines would have finished making its widget in 5 minutes.
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100 Meter Sprint Riddle

Hint:
He had athlete's foot!
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100 Lawyers Riddle

Hint:
A whine cellar.
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