Answer:
Lillian bought 2.75 pounds of grapes and she eats one-quarter of a pound each day. She wants to eat until only 1.25 pounds are left. So, she plans to eat 2.75 - 1.25 = 1.5 pounds of grapes.
Since she eats one-quarter of a pound each day, it would take her 1.5 / 0.25 = **6 days** to eat 1.5 pounds of grapes. So, it would take Lillian 6 days to eat all but 1.25 pounds of grapes.