Posted by **Len** on Tuesday, May 8, 2012 at 9:58pm.

Robert feeds his dog 1 lb 4 oz of dog food a day. How long will a 40 pound bag last ?

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**Ms. Sue**, Tuesday, May 8, 2012 at 10:00pm
http://www.jiskha.com/display.cgi?id=1336492764

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**martin**, Tuesday, May 8, 2012 at 11:18pm
3x2x4

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**stranger**, Wednesday, May 9, 2012 at 2:34am
There are 16 oz in 1 lb.

So, 1 lb 4 oz = (1 * 16) + 4 = 20 oz

-- Each day, Robert feeds his dog 20 oz

If the bag is 40 lbs, and 1 lb = 16 oz

-- The bag is 640 oz

640 oz of food, divided by 20 oz servings

-- It will last 32 days.

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