Math CentralQuandaries & Queries


Question from David, a parent:

57 grams of feed how many fish can I feed at 2% of 1lb body weight or I suppose to feed 2% of body weight of food in grams fish weights 1 lb. I hope I said that write
Thank you Aloha dave

Hi Dave,

You need to make sure that you have similar units for your calculation and 1 lb is about 454 grams. To feed one fish with a mass of 454g, it would take 9.08g (0.02x454g) of fish food. So if you want to know how many fish you can feed:

(9.08g)x(number of fish)=57 g

Now solve for the number of fish.

Hope this helps,


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