Discuss Forum
1. Of the 32 students in a certain class, 15 are in debating club and 20 are in music club . If 10 of the students are not in either club, how many of the students are in only of the two clubs?
- A. 5
- B. 5
- C. 5
- D. 5
Answer: Option B
Explanation:
Out of 32
10 are not in either of the clubs
Thus
22 = 15 + 20 -both
Both = 13
Therefore
only music = 15-13 = 2
only Dance = 20 - 13 = 7
Hence 7 + 2 =9
10 are not in either of the clubs
Thus
22 = 15 + 20 -both
Both = 13
Therefore
only music = 15-13 = 2
only Dance = 20 - 13 = 7
Hence 7 + 2 =9
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