Answered

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Sally is organising a birthday party for her son. She is buying bottles of squash and is working out how many she will need. She has bought plastic cups with a capacity of 200ml and estimates that each of the 30 children attending will drink 2 cups. Each squash bottle contains 1.5 litres and recommends 1 part squash to 4 parts water. How many bottles of squash does Sally need to buy?

Sagot :

Answer:

Sally should buy two bottles.

Step-by-step explanation:

Information from the question -

  • 60 plastic cups, capacity of 200mL each (30 children attending will drink two cups, 30 * 2 = 60)
  • Squash : water ratio = 1 : 4
  • 1 squash bottle holds 1.5L

Solving the question -

If there are 60 cups with a capacity of 200mL each, the total capacity of all cups is 12000mL = 12L (60*200=capacity, divide by 1000 to convert from mL to L)

1 bottle of squash has 1.5L of squash, 4 times that amount needs to be added for a suitable ratio. Amount of water for 1 bottle = 6L (1.5*4=6). Therefore squash + water = 1.5+6 = 7.5L

The question asks how many bottles Sally should buy. She needs 12L of drink for the 60 cups. 12/7.5=1.6. However, you can't buy 0.6 of a bottle, so she must buy 2 bottles.

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