Q10 of 44 Page 1

In the following, state whether A = B or not:
(i) A = {a, b, c, d}                          B = {d, c, b, a}
(ii)   A = {4, 8, 12, 16}                   B = {8, 4, 16, 18}
(iii)  A = {2, 4, 6, 8, 10}                B = {x :x is positive even integer less than10}
(iv)  A = {x : x is a multiple of 10}     B = {10, 15, 20, 25, 30,………….}


(i) A = B 
(ii) A ≠ B, because element 12 of set A is not present in set B and element 18 of set B is not present in set A. 
(iii) A = B
(iv) A ≠ B, because set B consists of elements that are multiple of 5.

More from this chapter

All 44 →
8
Which of the following sets is finite or infinite?
(i) The set of the months of a year.
(ii) {1, 2, 3, ……}
(iii) {1, 2, 3, …….., 99, 100}
(iv) The set of positive integers greater than 100.
(v) The set of prime numbers less that 99.

9
Which of the following sets is finite or infinite?
(i) The set of lines which are parallel to the x-axis.
(ii) The set of letters in the English alphabet.
(iii) The set of numbers which are multiples of 5.
(iv) The set of animals living on earth.
(v) The set of circles in plane passing through the origin(0,0).

11
Are the following pair of sets equal? Give reasons.
(i) A = {2, 3} 
B = {x: x is a solution of x2 + 5x + 6 = 0}
(ii) A = {x: x is a letter in the word FOLLOW}
B = {y: y is a letter in the word WOLF}

12
From the sets given below, select equal sets and equivalent sets
A = {0, a}                          B = {1, 2, 3, 4}
C = {4, 8, 12}                    D = {3, 1, 2, 4}
E = {1, 0}                          F = {8, 4, 12}
G = {1, 5, 7, 11}                H = {a, b}