I'm seeking confirmation that the correct answer to this question is , which is one of the choices in the multiple-choice version of the question, and why.
Q: A dance studio has students. A poll shows that study tap and study ballet. What is the minimum number of students who are studying both tap and ballet?
I'm not clear if the question's original wording (which I don't have handy) meant that students studying tap means " students who study only tap" or " students who are studying at least tap and possibly also ballet" (and the same ambiguous wording for ballet).
But note that is less than total students. So are there other students who might have been taking both ( was not answer choice).
Also, students was not an answer choice - as in there are students taking tap and all are also taking ballet, which has more students, not taking tap.
Please explain the question and answer? Thanks