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How many different students are there in the two clubs together, and who are they?
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
How many different students are there in the two clubs together, and who are they?
Need a reminder? The key ideaShow
| gives everything, with no repeats. |
The worked solution
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Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, compare your working with the solution.
The union cricket | chess keeps every name once: ['Asha', 'Kabir', 'Meera', 'Ravi'].
There are 4 students. (Three in each club makes six names, but Ravi and Meera are counted in both, so we count them once: .)
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