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  • Brainly User
2015-09-23T11:44:31+08:00

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Steps:
1) 30 - 6 = 24, the number of students who like Mathematics, English, or both

2) (20 + 15) - 24 = Number of students who like both English and Math
    35 - 24 = 11 Number of students who like both English and Math

3) 15-11 =  4, Number of students who like English only

4) 20 - 11 = 9, Number of students who like Mathematics only

11 is the number of students who like both Mathematics and English.

To Check:
6 + 4 + 9 + 11 = 30
                  30 = 30
      
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