Among 18 students in a room, 7 study mathematics, 10 study science, and 10 study computer programming. Also, 3 study mathematics and science, 4 study mathematics and computer programming, and 5 study science and computer programming. We know that 1 student studies all three subjects. How many of these students study none of the three subjects?
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Answer:
15
Step-by-step explanation:
=no.(M) + no.(S) + no.(C.p) - no. (M or S) - no (M or C.p) - no (C.p or S) ,
= 7+10+10 -3-4-5
= 15
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