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19. Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of (3 points)
his classes. He teaches band to 25 students. There are 9 students who have Mr. Green for math
and nothing else. Use the Venn diagram below:
Math
7
3
11
17
Band
Choir
How many students take exactly 2 classes with Mr. Green?

Respuesta :

Answer:

The answer is "17 students with Mr. Green take exactly two courses".

Step-by-step explanation:

Following are the calculation to this question:

Alone band 11

Alone chorus 17

Choir and band alone 4

7 Maths alone and the band

Choir and Math alone 6

Chorus and Math Band 3

mathematics alone 9 +11+4+10+6+17  + M = 57

so

2 classes = 4+7+6 = 17

So, there are 17 students with Mr. Green take exactly two courses.

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