Final answer:
It will take 8 spoonfuls of water to fill the whole cup.
Step-by-step explanation:
To fill half a cup, it takes 4 spoonfuls of water. Since the cup is divided into two equal parts, we can calculate that it will take 4 spoonfuls x 2 = 8 spoonfuls of water to fill the whole cup.
Learn more about Measuring water in a cup