Question

C)
In an examination, 80 % examinees passed in English, 70 % in Mathematics and
60 % in both the subjects. If 45 examinees failed in both subjects.
(i) draw a Venn-diagram to represent the above information.
(ii) Find the number of examinees who passed only one subject.
(iii) Find the number of students who failed Mathematics.
In an examination, 56 % examinees failed in Science, 54 % failed in Nepali and 25
students failed in both the subjects. If none of the examinees passed in both the
subjects,
(i) find the number of examinees who passed in Science only.
(ii) Find the number of examinees who passed in Nepali only.
(iii) Represent the above information in a Venn-diagram.
d)
1)
75 students in a class like tea or coffee or both. Out of them 10 like both the drinks.
The ratio of the number of students who like tea to those who like coffee is 2 : 3.
(i) Find the number of students who like tea.
(ii) Find the number of students who like coffee only.
(iii) Represent the above information in a Venn-diagram.
In s survey of 825 farmers, 125 of them were not using any type of fertilizer in their
vegetable farming. 150 of them were using chemical as well as organic fertilizers.​

Answer 1

Answer:

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Step-by-step explanation:

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