The original recipe serves 8 people and requires 3/4 cup of sugar. To find the amount of sugar needed for 22 people, we can set up a proportion:
(3/4 cup sugar) / (8 people) = (x cups sugar) / (22 people)
Cross-multiply and solve for x:
3/4 * 22 = 8x
66/4 = 8x
x = 66/32
x = 2.0625 cups
So, Prahar would need approximately 2.0625 cups of sugar for a serving size of 22 people.