This is so easy to get right...or wrong...

[slowmotion]

5+x*y-2
What's it to be?

(5+x) * (y-2) ?

5+ (x*y) -2 ?
etc

 

[ChrisV]

What's that got to do with this?

 

[Tim Hall]

It's 25.

Multiplication first, then addition.

So 5 + (2x10) = 5 + 20 = 25.

That is the answer. Like my post and close the thread.

If fries were 2p I'd agree. But they're not, as hinted in my post a moment ago.

 

[ChrisV]

Why not? Why not just say the reason instead of hinting like an arse? To think I took you off ignore to read this.

 

[sight-pin]

Why not? Why not just say the reason instead of hinting like an arse? To think I took you off ignore to read this.

You need to check the contents of your basket

 

[winjim]

yes it is.
To quote someone on this thread

Spoiler: My working

Shake + shake + shake = 30
3 shake = 30
Shake = 30 / 3
Shake = 10

Shake + burger + burger = 20
Shake + 2 burger = 20
2 burger = 20 - shake
2 burger = 20 - 10
2 burger = 10
Burger = 10 / 2
Burger = 5

Burger + 2 fries + 2 fries = 9
Burger + 4 fries = 9
4 fries = 9 - burger
4 fries = 9 - 5
4 fries = 4
Fries = 4 / 4
Fries = 1

Burger + fries × shake = burger + (fries × shake)
= 5 + (1 × 10)
=5 + 10
=15

 

[ChrisV]

It's 15. I see it now. He's going back on ignore.

 

[jefmcg]

edit. OK winjim is right.

But the problem is crap.

If I was dealing with mathematical representation, it would be clear.

If I was dealing with actual Macca's products, it would be clear. You wouldn't mistake 2 packets of fries for one

Show the actual thing you are measuring, or represent it accurately.

 

[Tim Hall]

It's 15. I see it now. He's going back on ignore.

You had me on ignore? Wow.

 

[ChrisV]

You made the mistake with the number of fries.

 

[rich p]

It's 15. I see it now. He's going back on ignore.

You swine, poor Tim probably won't sleep tonight now!

I think it's 60 though. The multiplcation first is bollix otherwise God wouldn't have invented brackets.
Apart from to hold shelves up obvs.
Or to punch people up obvs.

 

[winjim]

It's not rocket surgery. It's just basic simultaneous equations. Not even the hard kind, where you have to make substitutions.

3x=30
x+2y=20
y+2z=9
so x=10, y =5, z=2

then y+x * z = 5+10*2 = 25

2z?

 

[slowmotion]

It's not rocket surgery. It's just basic simultaneous equations. Not even the hard kind, where you have to make substitutions.

3x=30
x+2y=20
y+2z=9
so x=10, y =5, z=2

then y+x * z = 5+10*2 = 25

Why not y+(x*z) ?

When did this new fangled convention appear over the horizon of British education?

 

[slowmotion]

You swine, poor Tim probably won't sleep tonight now!

I think it's 60 though. The multiplcation first is bollix otherwise God wouldn't have invented brackets.
Apart from to hold shelves up obvs.
Or to punch people up obvs.

A bracket man! Splendid!

 

[ChrisV]

It is y+(x*z), that's what he just said.