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Question

the manager of a coffee shop recorded the number of customers who put vanila creamer or chocolate creamer in their coffee during one hour and classified them by ago the results are shown:
ages 18-30 got 2 vanilla creamer and 6 chocolate creamer
ages 31+ got 4 vanilla creamer and 8 chocolate creamer
what percentage of these customers put chocolate creamer in theor coffee during this hour
a 30%
b 14%
c 70%
d 75%

Answer 1

To find the percentage of customers who put chocolate creamer in their coffee, we first need to determine the total number of customers and the number of customers who used chocolate creamer.

Step 1: Calculate the total number of customers for each age group.

• For ages 18-30:

  • Vanilla creamer: 2
  • Chocolate creamer: 6
  • Total for 18-30: \( 2 + 6 = 8 \)

• For ages 31+:

  • Vanilla creamer: 4
  • Chocolate creamer: 8
  • Total for 31+: \( 4 + 8 = 12 \)

Step 2: Calculate the total number of customers.

• Total customers: \[ \text{Total for 18-30} + \text{Total for 31+} = 8 + 12 = 20 \]

Step 3: Calculate the total number of customers who put chocolate creamer in their coffee.

• Total chocolate creamer customers:
  • For ages 18-30: 6
  • For ages 31+: 8
  • Total chocolate creamer customers: \[ 6 + 8 = 14 \]

Step 4: Calculate the percentage of customers who put chocolate creamer in their coffee.

The formula for percentage is: \[ \text{Percentage} = \left( \frac{\text{Number of chocolate creamer customers}}{\text{Total customers}} \right) \times 100 \]

Substituting the numbers: \[ \text{Percentage} = \left( \frac{14}{20} \right) \times 100 = 70% \]

Final Answer: Therefore, the percentage of customers who put chocolate creamer in their coffee during this hour is 70%.

The correct answer is (c) 70%.

Answer 2

make it shorter

Answer 3

To find the percentage of customers who put chocolate creamer in their coffee:

1. Count Customers:

   • Ages 18-30: \(2\) (vanilla) + \(6\) (chocolate) = \(8\)
   • Ages 31+: \(4\) (vanilla) + \(8\) (chocolate) = \(12\)

   Total customers: \(8 + 12 = 20\)

2. Count Chocolate Creamer Users:

   • Ages 18-30: \(6\) (chocolate)
   • Ages 31+: \(8\) (chocolate)

   Total chocolate users: \(6 + 8 = 14\)

3. Calculate Percentage: \[ \text{Percentage} = \left( \frac{14}{20} \right) \times 100 = 70% \]

Final Answer: 70% (c)