r/theydidthemath 3d ago

[Request] Which is a better deal?

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1.7k Upvotes

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u/Lomega18 3d ago

So, the 6 inch Pizza has an area if

62*pi=113 sq. inch * (65/360)=20.4 sq. Inch

the pizza with 7 inch has

72*pi=154 sq. Inch * (45/360)=19.2 sq. inch.

Get the 6 inch, it has abut 1.2 Square inches more pizza for 20 cent less :)

59

u/Business-Emu-6923 3d ago

You can just do chaotic maths and ignore the common factors:

6x6x65 =2,340

7x7x45 =2,205

41

u/NoBusiness674 3d ago

Most cursed unit: °"² (degree inch squared)

5

u/Lihiro 3d ago

I'm cringing looking at it. Take it away!

2

u/Business-Emu-6923 2d ago

Degree inch squared is the only measure of pizza you need.

1

u/meIpno 2d ago

°"° tiny face

6

u/sneakyhopskotch 3d ago

You should then divide by the prices to make sure of the answer. Love it though.

7

u/Level9disaster 3d ago

No need, as the first one is also cheaper.

5

u/sneakyhopskotch 2d ago

Ture. I should have said "to be sure of how much of a better deal it was"

2

u/Ignorhymus 3d ago

Alternatively, is 36/49 bigger than 45/65? The latter 9/13, or 36/52, so we can see 36/49 is bigger than 36/52