## Unit 17 Section 5 : Problems in context
In this section we look at problems where we need to deal with more than one type of unit. ## Example QuestionA school canteen buys a 1 gallon can of fruit juice.The canteen sells fruit juice in cups which hold 150 ml of juice. How many cups can be filled?
We need to get all the amounts into the same units. It is usually easier to change
1 gallon is approximately 4.5 litres, and 1 litre is 1000 ml, so Now we can answer the question - how many 150 ml cups can we get from 4500 ml? 4500 ÷ 150 = 30, so we can fill about 30 cups from 1 gallon.
## Practice QuestionsWork out the answer to each of these questions then click on the button marked to see whether you are correct.
## ExercisesWork out the answers to the questions below and fill in the boxes. Click on the button to find out whether you have answered correctly. If you are right then will appear and you should move on to the next question. If appears then your answer is wrong. Click on to clear your original answer and have another go. If you can't work out the right answer then click on to see the answer.
You have now completed Unit 17 Section 5
Produced by A.J. Reynolds August 2008 |