How much?

[StuartR]

This puzzle is not quite as easy as it looks...

[HansV]

Perhaps I'm naive...

Spoiler

2+5*10=52

[StuartR]

Nope

[HansV]

Oops

Spoiler

5+1*10=15

[StuartR]

Can you explain your working

[HansV]

Sorry, my mistake. I edited my previous reply.

[StuartR]

That's better

[Leif]

Hmmm. I came up with different answer...

Spoiler

x.jpg

[StuartR]

That's correct too Leif

[Rudi]

Spoiler

5 + 2 * 10 = 25

[StuartR]

Rudi,

You made the same mistake that I did. Check again.

[Rudi]

Argh!!! (Very clever!!!)

Spoiler

5 + 1 * 10 = 15

...but I doubt the chips are free, so...

5 + 1 * 10 = 15 (+1) = 16

[StuartR]

You lost me there Rudi, Your first answer was correct, but I don't understand the (+1) and associated comment.

[Rudi]

Spoiler

If I follow the BODMAS order of calculation, then the cost for the chips is lost (eg: 1 * 10 = 10) which is the cost of the shake without chips.

So without being sure if this is applicable in the solution of the puzzle, I include the chips in the final value again: 5 + (1 * 10) = 15 + 1 [cost of chips] = 16.

[StuartR]

I don't understand your logic there Rudi.

Spoiler

Drink = 10, Burger = 5, chips = 1.
So calculation for last line is 5 + (1*10) = 15

[Rudi]

LOL... maybe I'm complicating things, but if you were the owner of that MacDonalds, you'd be loosing out on the value of the chips each time you offer that special.

[StuartR]

[BobH]

It's been a very long time and my synapses are not what they once were.

Spoiler

To me, it says that each has these values:
drinks = 10 (30 ÷ 3 = 10)
burgers = 5 (20 - 10 = 10); (10 ÷ 2 = 5) thus 10
fries = 2 (9 - 5 = 4); (4 ÷ 2 = 2)
Ergo, (2 x 10) = 20; 20 + 5 = 25
That means the answer is 25, no?

Did I forget the order of operations

[HansV]

I made the same mistake.

Spoiler

Look very carefully at the fries

[BobH]

I made the same mistake.

Spoiler

Look very carefully at the fries

I'm thinking they might be my missing fried synapses!


But it's good to know that I am in such good company!!