You need to find the ratio (cream: sugar) in order to know the amount of the sugar.
If they both at 1/2 of the salad then they ate the same amount of lunch. Because 1/2 is equal to 1/2 therefore it is the same.
You would have to do 2,000*4 Because there are 4 per pound. You would have to eat 8,000 to have eaten a actual ton of them. XD Nice question btw.