Question

Sian has a lemon drink made by mixing 120 ml of concentrate with 180 ml of water. What percentage of her lemon drink is concentrate?

A) 40%
B) 45%
C) 60%
D) 65%

Answer 1

To find the percentage of concentrate in Sian's lemon drink, divide the volume of concentrate by the total volume of the drink and multiply by 100. The calculation shows that concentrate makes up 40% of the lemon drink.

Step-by-step explanation:

To find out what percentage of Sian's lemon drink is concentrate, you can add the amount of concentrate to the amount of water to get the total volume of the drink. Then, divide the volume of concentrate by the total volume and multiply by 100 to get the percentage.

Here's the calculation:

• Total volume of lemon drink = Volume of concentrate + Volume of water
  
• Total volume of lemon drink = 120 ml + 180 ml
  
• Total volume of lemon drink = 300 ml
  
• Percentage of concentrate = (Volume of concentrate / Total volume of lemon drink) × 100
  
• Percentage of concentrate = (120 ml / 300 ml) × 100
  
• Percentage of concentrate = 0.4 × 100
  
• Percentage of concentrate = 40%
  

Therefore, the correct answer is A) 40%.