Question

Xerxes is selling cups of lemonade. He is selling regular and pink lemonade in 3 sizes: small, medium, and large. The table displays today’s sales results:
Based upon these results, how many medium regular lemonades should Xerxes sell if he expects 640 customers tomorrow?
112 medium regular lemonades
96 medium regular lemonades
80 medium regular lemonades
128 medium regular lemonades

Find (pink lemonade).

$\frac{17}{40} \frac{7}{20} \frac{7}{20} \frac{3}{10}$

Answer 1

Part 1

Add up the values in the table: 90+36+54+45+63+72 = 360

This means 360 total drinks were sold. Of that total, 54 were medium regular.

The percentage of medium regular is 54/360 = 0.15 = 15%

Apply this percentage to the 640 customers he plans to sell to

15% of 640 = 0.15*640 = 96

Answer: 96

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Part 2

It sounds like your teacher wants you to find the probability of picking pink lemonade. The table says that 36 small, 45 medium, and 72 large pink lemonades were sold. That means 36+45+72 = 153 pink lemonades were sold out of the 360 total

153/360 = 0.425

Then go through each answer choice to note that 17/40 = 0.425 as well

Therefore, 153/360 = 17/40

Answer: 17/40