Asked by Len

Robert feeds his dog 1 lb 4 oz of dog food a day. How long will a 40 pound bag last ?
Answered by Ms. Sue
http://www.jiskha.com/display.cgi?id=1336492764
Answered by martin
3x2x4
Answered by stranger
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.