1.
In a survey of
195 people it was found that 25 liked Tea only, and 125 liked Coffee only. The
number of people who liked Coffee is three times the number of people who liked
Tea. By using Venn-diagram find the number of people who liked both and who
liked none of them.
2.
In a survey of 200
students 30 liked neither to sing a song nor to dance, 60 liked to sing a song
only and 50 liked to dance only then (a) Illustrate the above information in a
Venn-diagram (b) Find the number of students who can sing a song
3.
Out of 50
students in a class, 10 liked Mathematics but not Science and 15 liked Science
but not Mathematics. If 10 students liked neither of both then (a) Represent
the above information in a Venn-diagram (b) Find the ratio of students who
liked Mathematics to the students who liked Science.
4.
50 students in a
class like Nepali, History or both. Out of them, 20 like both. If the ratio of
number of students who like Nepali and History is 3:2, using Venn-diagram, find
: (a) How many students like Nepali? (b) How many like History only?
5.
In a survey of a
community, it was found that 35% liked Folk songs only, 20% liked Modern songs
only, 30% liked both songs and 450 didn’t like both songs. Find the number of
people who liked Folk songs by using Venn-diagram.
6.
In a survey of
400 people, 300 people drink only one of drink out of Tea and Coffee. 50 people
drink none of them. Find the number of people who drink both.
7.
In a survey, one
third children like only Mango and 22 don’t like mango at all. Also 2/5 of
children like Orange but 12 like none of them. (a) Show the above data in a
Venn-diagram (b) How many children like both fruits?
8.
Out of 115000
students 20% failed in SLC examination. 40% of the failures failed in Science
only and 35% in Mathematics only. But 5% of them failed in other subjects.
Then, (a) How many failed in both subjects? (b) Illustrate the above
information on a Venn-diagram
9.
Out of 120
students appeared in an examination the number of students who passed in
Mathematics only is twice the number of students who passed in Science only. If
50 students passed in both and 40 students failed in both subjects then find
the number of students who passed in : (a) Mathematics (b) Science (c)
Illustrate the result in a Venn-diagram.
Solution for above questions coming soon !
Solution for above questions coming soon !
