Question

A = {1, 3, 5}, B = {1, 4, 6} and C = {2, 4, 6, 8}, then which of the following may be considered as in universal set: 

(i) {0, 1, 2, 3, 4, 5, 6} 

(ii) {1, 2, 3, 4, 5, 6, 7, 8} 

(iii) {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10} 

(iv) Φ

Answer 1

For set A = {1, 3, 5}, B = {2, 4, 6} and C = {2, 4, 6, 8}

we have (ii) and (iii) universal set, because it contains all the elements of the given sets A, B and C.