A 'sack' is not a recognised unit of measure . Answer could be anything you like.
That is 4 cups.
That is about 2.646 cups.
How many cups of sugar is in 300grams
how many cups are in a pound of brown sugar
That is 3 cups of sugar
That is 1.25 cups.
That is 3.628 cups of sugar
That is about 1.192 cups.
There are approximately 3.4 cups of sugar in 675 grams.
About 4 cups
That is approximately 12 cups.
That is approximately 21 cups of sugar.