19. There are 51 students at a school. Each student must least a one course in Algebra (A), Biology (B), Chemistry (C). 25 students take A; 24 students take B; 26 students t 8 students take A and B; 12 students take A and C; 10 students take B and C How many students take all 3 courses? O none of these

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19. There are 51 students at a school. Each student must take at
least a one course in
Algebra (A), Biology (B), Chemistry (C).
25 students take A; 24 students take B; 26 students take C
8 students take A and B; 12 students take A and C; 10
students take B and C
How many students take all 3 courses?
none of these
O 5
6
Transcribed Image Text:19. There are 51 students at a school. Each student must take at least a one course in Algebra (A), Biology (B), Chemistry (C). 25 students take A; 24 students take B; 26 students take C 8 students take A and B; 12 students take A and C; 10 students take B and C How many students take all 3 courses? none of these O 5 6
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