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In a certain school, teachers who lecture English and Spanish are ther

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In a certain school, teachers who lecture English and Spanish are ther [#permalink]
Hi chetan2u,

Though i got E. My understanding of the question was different.

Question says , teachers who teach spanish and english are there. From these wordings, I assumed, there could be teachers who teach both spanish and english among other teachers who teach only english or spanish.
So question i thought was P(S U E) = P(S) + P(E) - P(S AND E) ?

And one more thing i assumed, there could teachers who teach neither. Based on this, i saw combining both the statements insuff.

do you think the question should have been worded as teachers teach either english or spanish?

I was lucky to get correct answer even after i misunderstood, but not to be true always.

Thanks
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Re: In a certain school, teachers who lecture English and Spanish are ther [#permalink]
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Re: In a certain school, teachers who lecture English and Spanish are ther [#permalink]
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