Simple Maths Problem....fao Barry!

[ToraToraTora]

Barry's post below demonstrates how the correct approach is vital even with simple arithmetic, so here's another classic....

The missing pound!

//Three friends are splitting the bill after a meal out at a restaurant. The
waiter says the bill is £30, so the guests split it evenly and pay £10 each.

As he’s walking away the waiter realises that he’s overcharged the group
and the bill should only be £25.

In order rectify this, he takes the £5 that is owed to the guests in order
to bring the bill down to £25. On the way back to the table, he realises
that he cannot divide £5 equally between three people.

As the customers are still unaware of the actual total of the revised bill,
the waiter decides to just give each of the three friends £1 each and then
keep the leftover £2 as a tip for himself.

Basically, each customer got £1 back: meaning they only paid £9 each;
bringing the total paid to £27. The waiter has the leftover £2.

The £27 the customers paid, + the £2 the waiter kept = £29 so, if the
diners originally handed over £30, what happened to the remaining £1?//

 

[barry1010]

Is this along the same principle of counting down from 10 on your left hand (you end at six) then counting up on the right and arriving at 11?

[ToraToraTora]

Not really though it is about realising what the real sum is.

[barry1010]

There is no missing £1. £25 paid + £2 the waiter kept + £3 returned = £30.  The customers really paid £27

[Khandro]

pleased see other maths thread:

https://www.theanswerbank.co.uk/Quizzes-and-Puzzles/Question1874364.html

[JJ109]

The customers got a meal valued at 25 pounds + 3 pounds back = 28 pounds + 2 pounds tip = 30 pounds,originally given

They have paid 27 pounds for a meal worth 25 pounds and a 2 pound tip

[Old_Geezer]

Ah, the old ones are the best ones.

 

Not putting the amounts correctly into the sums can lead to confusion.