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steposvetlana [31]

3 years ago

7

In a class of 80 students, 45 are good in math,15 are good in both math and english,13 are good in both math and psychology,16 a

re good in both english &physchology ,20are good in physchology and 9 are good in all of the three .how many of them are good in mathematics

1 answer:

Gennadij [26K]3 years ago

4 0

Answer:

26 students are good in mathematics only.

28 students are not good in any of the three courses.

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