Mathematics, 26.10.2020 01:40 ogdeekin
A, B and C are three restaurants in Taman Damai. A group of residents in Taman Damai were asked to name the restaurants they like.
The Venn diagram shows part of the results of the survey.
Given:
A = {residents who like restaurant A}
B = {residents who like restaurant B}
C = {residents who like restaurant C}
It is given that 20 residents like restaurant A
or B, 22 residents like restaurant B or C and
7 residents do not like restaurant A or C.
Calculate the number of residents who
(a) like restaurant C only.
(b) like restaurant A but do not like restaurant B.
(c) do not like restaurant A or B.
Please help me to solve this question and explain it to me. Thanks.(。・ω・。)
Silly answer will be report.
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