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In a commifiee, 50 people speak French, ...

In a commifiee, 50 people speak French, 20 speak Spanish and 10 speak both Spanish and French. How many speaks at least one of these two languages?

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  14. Consider the sets A and B given by A = {x: x is a prime number lt10} ...

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  15. Consider the sets A and B given by A = {x: x is a prime number lt10} ...

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  16. Consider the sets A and B given by A = {x: x is a prime number lt10} ...

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