QUESTION 6

A firm decides to use metric measures for each of its products. At present, the medicine is sold in bottles containing 5 fl oz. If [tex]1 \text{ fl oz} = 28.41 \text{ millilitres}[/tex], work out to the nearest centilitres the amount to be stated on the bottle. (2 marks)



Answer :

Let's solve the problem step-by-step to find out how much should be stated on the bottle in centilitres:

1. Understand the initial quantity:
- The medicine is currently in bottles containing 5 fluid ounces (fl oz).

2. Convert fluid ounces to millilitres:
- We know that 1 fluid ounce is equivalent to 28.41 millilitres.
- To find out how many millilitres are in 5 fluid ounces, we multiply:

[tex]\[ 5 \, \text{fl oz} \times 28.41 \, \text{millilitres/fl oz} = 142.05 \, \text{millilitres} \][/tex]

3. Convert millilitres to centilitres:
- Since 1 centilitre (cl) is equal to 10 millilitres (ml), we convert millilitres to centilitres by dividing by 10:

[tex]\[ 142.05 \, \text{millilitres} \div 10 = 14.205 \, \text{centilitres} \][/tex]

4. Round to the nearest centilitre:
- To report the amount to the nearest centilitre, we round 14.205 centilitres:

[tex]\[ 14.205 \approx 14 \, \text{centilitres} \][/tex]

Therefore, the amount to be stated on the bottle should be 14 centilitres.