Revision and Practice Time
Set
In a survey conducted among 500 grade 10 students studying in a school, it was
found
that the ratio of the number of students
preferring Mathematics and Nepali
was 2:
1
.
Among them, one-fifth of the students
preferred both the subjects but 30%
preferred
neither Mathematics nor
Nepali.
(a) If M and N represent the sets of students who preferred Mathematics and
Nepali respectively, write the set of students who preferred both the
subjects in
cardinality notation.
(b) Represent the above information in a Venn-diagram.
(c) Find the number of students who preferred at most one subject.
[1K]
[1U]
[3A]
(d) By how many times was the number of students who preferred Mathematics only
more than the number of
students who preferred Nepali only?
1HAI
35 ft.
J
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