please use a set of identity and full explanation with the pictures of the circl

Question

please use a set of identity and full explanation with the pictures of the circles thanks like anbnc etc;;;;;    please if your answer is incorrect or not complete don't answer thanks           

120 people which show the television network they watched in a given evening

Network Number of People for the three remaining region o the circles : hint find x and y by using the 5 in the intersection of all three sets then find z              

ABC 55
Nbc 30
cbs 40

ABC AND CBS 10
ABC AND NBC 12
NBC AND CBS AND ABC 5

PLEASE USE THE Circle and set identity

a- How many people watched ABC OR CBS BUT NOT NBC?

b- How many people watched CBS BUT NOT ( ABC OR NBC)?

c- How many people watched NBC AND ABC BUT NOT CBS?

d- HOW Many people did not watch any of these 3 networks

Explanation / Answer

sorry to say but your given data is not suitable

Let A=ABC

N=NBC

and C=CBS

so from given data we have

AUBUC=120, A=55, N=30, C=40, A int C=10, A int N=12 and A int N int C=5 where int is intersection

we know AUNUC=A+N+C-A int N-A int C-C int N+ A int C int N

so 120=55+30+40-12-10-x+5

=> 120=125-22-x

=>x=125-120-22

=>x=-17 which is not possible

so data is incorrect

if you please give the correct data i can find your answer

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