Скачать или смотреть Class 9-Maths-Exercise 1.6 Solutions-Chapter 1-Set Theory-Matric Samacheer Kalvi-Book Back Exercises

Class 9 Maths Exercise 1.6 Solutions Chapter 1 Set Theory Matric Samacheer Kalvi Solutions Book Back Exercise Multiple Choice Questions State Board Tamil Nadu
Class 9-Maths-
Exercise 1.6-Solutions-
Chapter 1-Set Theory-
Tamilnadu Samacheer Kalvi
Set Language
Book Back Exercises-Solutions-
Tamil Nadu State Board
De-Morgan’s Law of Intersection,
Associative Property
Complement of Sets
Universal Sets and its properties
Important Questions for Board Examinations and TNPSC Examinations
In this video we are discussing the book Back Exercise of Class 9 Matriculation Scheme, Tamil Nadu State Board, Mathematics , Unit 01, Set Theory, Book Back Exercises 1.7

NCERT Solutions

Tamil Nadu State Board (English Medium) Matriculation
Exercise 1.2 Link :    • Tamilnadu Samacheer Kalvi  Class 9 Maths S...  
Exercise 1.3 Link:    • Class 9 Maths Solutions   Chapter–1  Exerc...  
Exercise 1.4 Link :    • Tamilnadu Samacheer Kalvi 9th Maths Soluti...  
Exercise 1.5 Link ::    • Class 9 Maths-Exercise 1.5-Solutions-Chapt...  
Exercise 1.6 Link ::    • Class 9-Maths-Exercise 1.6 Solutions-Chapt...  
Exercise 1.7 Link ::    • Class 9-Maths-Exercise 1.7-Solutions-Chapt...  


1. (i) If n(A) = 25, n(B) = 40, n(A∪B) = 50 and n(B′) = 25 , find n(A∩B) and n(U).
(ii) If n(A) = 300, n(A∪B) = 500, n(A∩B) = 50 and n(B′) = 350, find n(B) and n(U).

4. In a class, all students take part in either music or drama or both. 25 students take part in music, 30 students take part in drama and 8 students take part in both music and drama. Find
(i) The number of students who take part in only music.
(ii) The number of students who take part in only drama.
(iii) The total number of students in the class.

5. In a party of 45 people, each one likes tea or coffee or both. 35 people like tea and 20 people like coffee. Find the number of people who
(i) like both tea and coffee.
(ii) do not like tea.
(iii) do not like coffee.

6. In an examination 50% of the students passed in Mathematics and 70% of students passed in Science while 10% students failed in both subjects. 300 students passed in both the subjects. Find the total number of students who appeared in the examination, if they took examination in only two subjects.

7. A and B are two sets such that n(A–B) = 32 + x, n(B–A) = 5x and n(A∩B) = x. Illustrate the information by means of a Venn diagram. Given that n(A) = n(B), calculate the value of x.

8. Out of 500 car owners investigated, 400 owned car A and 200 owned car B, 50 owned both A and B cars. Is this data correct?


9. In a colony, 275 families buy Tamil newspaper, 150 families buy English newspaper, 45 families buy Hindi newspaper, 125 families buy Tamil and English newspapers, 17 families buy English and Hindi newspapers, 5 families buy Tamil and Hindi newspapers and 3 families buy all the three newspapers. If each family buy at least one of these newspapers then find
(i) Number of families buy only one newspaper
(ii) Number of families buy at least two newspapers
(iii) Total number of families in the colony.

11. In the adjacent diagram, if n(U) = 125 , y is two times of x and z is 10 more than x, then find the value of x , y and z.

12. Each student in a class of 35 plays atleast one game among chess, carrom and table tennis. 22 play chess, 21 play carrom, 15 play table tennis, 10 play chess and table tennis, 8 play carrom and table tennis and 6 play all the three games. Find the number of students who play
(i) chess and carrom but not table tennis
(ii) only chess
(iii) only carrom

13. In a class of 50 students, each one come to school by bus or by bicycle or on foot. 25 by bus, 20 by bicycle, 30 on foot and 10 students by all the three. Now how many students come to school exactly by two modes of transport?

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