Question

Idea of Sets
ST-13
7. Find the subsets of the following.
(i) A = {4, 8}. (ii) B = {3, 6, 9} (iii) C = {0, 3, 4, 5}
8. If P = {letters of the word ONE), Q = {letters of the word NONE} and R = {letters of the
word GONE} then which of the following statements are true and which are false?
(i) PCQ
(ii) Q CR
(iii) PCR
(iv) PCR
(v) P =Q
(vi) Q =R​

Answer 1

P= O,N,E

Q= N,O,N,E

R= G,O,N,E

Q consists of all letters of P

So PCQ

Q and R have different letters N,G

So QCR false

R consists of all letters of P

PCR true

P not equal to Q

Q And R are equal in no of letters but have different letters