Three people buy a pizza for $30.00, they each pay $10.00. The store owner realizes he charged them to much and returns $5.00 to them. They each take back $1.00 and give the other $2.00 to the waiter. The question is: we all know 3 x $9.00 is $27.00 + $2.00 to the waiter = $29.00, where is the other $1.00??
2006-12-03 03:02:52 · 14 answers · asked by Dave 1 in Science & Mathematics ➔ Mathematics
It's meaningless to add $2 to the $27. $2 is received
and $27 is paid.
Total paid is $27
Total received is $25 + $2 = $27
2006-12-03 03:31:09 · answer #1 · answered by albert 5 · 0⤊ 0⤋
After returns from owner they paid: 3x $9=$27 The balance of $3
they have themselves so: $27+$3=$30
After paying the waiter $2 of their $27 they now have $25 + the refund from owner 25+3=$28. The waiter have the remaining $2.
There is no extra $
2006-12-03 06:23:21 · answer #2 · answered by Anonymous · 0⤊ 0⤋
They paid $25 for the pizza + $2 tip for waiter = $27 They each kept $1 or $3 total. $27 + $3=$30 Total. There is no extra dollar.
2006-12-03 03:21:11 · answer #3 · answered by john h 7 · 0⤊ 0⤋
You have 2 equations. Paid 30, got 3 returned. 30-3=27
Owner has 25, waiter has 2. 25+2=27.
There is no extra dollar.
3x9 = 27. Minus (not plus as you stated) the 2 for the waiter, and you have 25.
2006-12-03 03:11:24 · answer #4 · answered by maddojo 6 · 1⤊ 0⤋
Okay they paid $30 for the pizza and was given $5 back. So the pizza costed $25. They each got a $1 back so altogether that's $28. And the gave the waiter $2. So that's $30. I figured it out!!! I'm sweet!!!
2006-12-03 03:10:53 · answer #5 · answered by Tee-Tee 2 · 0⤊ 0⤋
This has been discussed a million times.
The answer is, there's no reason why
what they paid (3*9$) + the tip (2$)
should equal the amount they initially gave (3*10$) !
(note that the tip is already counted in what they paid, so the 27+2 is a meaningless quantity).
It's just the fact that 29 is almost 30 that's confusing.
What is true is that what they paid (3*9$)
equals the price of pizza + tip (25+2$).
2006-12-03 03:10:07 · answer #6 · answered by frank m 2 · 0⤊ 0⤋
Adding $27 and $2 is foolish.
$27 is what they spent, out of which $2 were given to the waitor. The remaining $25 dollars for pizza. You should find the difference of 27 & 2 to find the price of pizza. Why do you do add them. $2 is included in their expenditure $27(in total).
Their expenditure is $25 for pizza and $2 for waitor, totally $27.
Initially each has $10.
Now each spent $9.
Now each has $1 at hand.
Initially the total amount=3*$10=30.
After, buying pizza,
Total amout=expenditure+balance at hand.
=$27+$3(at hand)
=$30
Tallied. OK?
Swamy
2006-12-03 03:18:48 · answer #7 · answered by K N Swamy 3 · 0⤊ 0⤋
The answer is, that since the final amount is $25. not $30., you need to add (or subtract!) things to that amount, NOT the original $30...
In other words, 3 x 9 = 27, minus the $2.00 for the waiter, $25.00
Old story!
2006-12-03 03:06:11 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Trick question if 5 dollars was refunded then the pizza only cost 25 dollars. 2 dollars of that 27 dollars plus your missing dollar is in the pockets of the people buying the pizza.
2006-12-03 03:14:59 · answer #9 · answered by ikeman32 6 · 0⤊ 0⤋
well the trick is you can't take 3 x $9.00 because they did not pay $9 each in the first place. remember that the store owner returned them $5? that means the bill of $25 would be shared amongst the 3 of them. Hence the bill would be $8.3333 for each person and not $9.
2006-12-03 03:10:57 · answer #10 · answered by eVolution 2 · 0⤊ 1⤋