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Part 5:
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Ratio and Proportion |
| Calculating with Ratios (2) Look at the difference between the last set of examples and this one. Example 5.3 A concrete mixture contains cement, sand and gravel in the ratio 3 : 4 : 2. There are available 36 buckets of sand, all of which get used. How many buckets of cement and gravel are needed. |
