Question

In a group of 15 people, 7 read French, 8 read English while 3 of them read none of these two. How

many of them read French and English Both?​

Answer 1

Answer:

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Step-by-step explanation:

Total number of people in the group, U = 15

Number of people who can read French, n(F) = 7

Number of people who can read English, N(E) = 8

Also, 3 people cannot read any of the languages

So, n(F ∪ E) = U - 3

⇒ n(F ∪ E) = 12

Now, we need to find n(F ∩ E)

⇒ n(F ∩ E) = n(F) + n(E) + n(F ∪ E)

⇒ n(F ∩ E) = 7 + 8 - 12

⇒ n(F ∩ E) = 15 - 12

⇒ n(F ∩ E) = 3

Hence, Number of people who can read both French and English = 3

Answer 2

Step-by-step explanation:

15 people read french and english both

hope this help you

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