Final answer:
To represent the proportion of Year 12 pupils in the rugby club out of a total of pupils as a percentage, you can use the formula: (Number of Year 12 pupils / Total number of pupils) * 100. The proportion of Year 12 pupils in the rugby club is 70.3%.
Step-by-step explanation:
To represent the proportion of Year 12 pupils in the rugby club out of a total of pupils as a percentage, you can use the following formula: (Number of Year 12 pupils / Total number of pupils) * 100.
In this case, the number of Year 12 pupils is 97 and the total number of pupils is 138. Plugging these values into the formula gives us (97 / 138) * 100 = 70.3%.
Therefore, the proportion of Year 12 pupils in the rugby club is 70.3%.
Learn more about proportions in mathematics