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Pizza Discount

Math brain teasers require computations to solve.

 

Puzzle ID:#46899
Fun:*** (2.47)
Difficulty:** (1.89)
Category:Math
Submitted By:Yazmeen*pk***!!

 

 

 



The 10" pizza sells for $3.99 at my favorite pizza store. The store claims they have a great deal on the large 12" pizza, which is specially priced at $ 4.31. What is the per cent discount the store is offering?

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Comments

stil*us*
May 03, 2010

This is just school house number crunching.
comeonca*
May 04, 2010

Are these pizzas round or are they square?
Yazmeen*pk*
May 04, 2010

They are round.
bbcoolbeans7Abi*
May 04, 2010

Man, that is hard!!!!! Mainly because i am not in high school yet. I am in 6th grade. High school next year. As of 2010.
BRAINIACGURL*
May 04, 2010

im a sophomore and did not get that and i have a 80 in math but but im in algebra idk its confusing
addspras**
May 05, 2010

small correction needed: area of a circle is pi r^2, hence, its is not 10^2 and 12^2 as those are diameters, the correct should be to take radius: so it should be 5^2 and 6^2. There will be no change in the final answer though, as the ratios will remain consistent nonetheless.
Yazmeen*pk*
May 05, 2010

Thanks addspras! I will fix that.
RRAMMOHAN*in*
Oct 27, 2012

A tricky one but simple.

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