Selina Concise Class 6 Math Chapter 10 Sets Exercise 10D Solution
EXERCISE 10D
(1) State whether the given set is infinite or finite:
(i) Infinite
(ii) Finite
(iii) Infinite
(iv) Finite
(2) Which of the following sets is empty?
(i) Empty
(iii) Empty
(iv) Empty
(3) State which pair of sets given below are equal sets and which are equivalent:
(i) Equal
(ii) Equivalent
(iii) Equal
(iv) Equivalent
(4) State which of the following are finite sets and which are infinite:
(i) Infinite
(ii) Infinite
(iii) Infinite
(iv) Finite
(v) Infinite
(vi) Finite
(vii) Finite
(viii) Infinite
(ix) Infinite
(x) Infinite
(5) State whether or not the following sets are empty:
(i) Not Empty
(ii) Empty
(iii) Empty
(iv) Not empty
(v) Not empty
(vi) Empty
(vii) Not empty
(6) State if the given pairs of sets are equal sets or equivalent sets:
(i) Equivalent
(ii) Equal
(iii) Equal
(iv) Equal
(v) Equal
(vi) Equivalent
(7) State whether the following are finite or infinite sets:
(i) Finite
(ii) Infinite
(iii) Finite
(iv) Finite
(v) Infinite
(vi) Finite
(8) For each statement given below, write True or False:
(i) False
(ii) False
(iii) True
(iv) True
(v) True
(vi) False
(vii) True
(viii) False
(9) State, giving reasons, which of the following pairs of sets are disjoint sets and which are overlapping sets:
(i) Disjoint sets
Reason: As no girl can be of age below 15 years and also above 15 years.
(ii) Overlapping sets
Reason: As boys above 27 years are also above 20 years.
(iii) Overlapping sets
Reason: As natural numbers from 51 to 59 are common to both the sets.
(iv) Overlapping sets
Reason: As students of class IX studying in I.C.S.E. Board are common.
(v) Disjoint sets
Reason: As no letter is common to both the sets.