Help with maths problem please

[cat_mioux]

Not my strongest point ....

Brand A Cat Food is $54 for 3.5kg

Brand B Cat Food is $37 for 2.66kg.

Brand A has a deal: every 11th bag is free.

What would be the cheapest cat food to buy?

Thank you 🙂

[freakiness]

almost the same. B is so marginally cheaper that it makes little difference. 

[cat_mioux]

Thanks Freakiness!

It was driving me nuts trying to work it out. I managed to work out the $ per kg but after that I stalled.

I'll stick with Brand A.

[the_hawk*]

54	x10	3.5	x11	540	38.5		14.02597	per kg
37	x11	2.66	x11	407	29.26		13.90977	per kg

[cat_mioux]

Thanks hawk but remember the 11th bag is free for Brand A.

[the_hawk*]

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@cat_mioux wrote:

Thanks hawk but remember the 11th bag is free for Brand A.

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Yes that has ben added to the total weight

[cat_mioux]

Ok thanks! 🙂

[kopenhagen5]

A - $15.43 per kg

B- $13.90 per kg

A in deal - 14.03 per kg

[the_bob_delusion]

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@cat_mioux wrote:

Thanks hawk but remember the 11th bag is free for Brand A.

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My God, you really are bad at math, even when the math has been explained. 

There's a math question and a practicality question and taste and nutritional problem. 

[cat_mioux]

Thanks kopen.

Brand A is the more premium quality cat food. Just goes to show to always do your maths!