Question

Given U = { 1,2,3,……………………30} is a univerasal set. Let A,B,C,D be its four subsets defined as : i)A = {x:x is a prime number} .List the elements of A. a) {2,3,5,7,11,13 ,23,29} b) {2,3,5,7,11,13,17,19,23,29} c) {2,3,5,7,11,13,17,19, 29} d) {2,3,5,7,11,13,17,19,23,29,30} ii) B ={x :x is an even number} .List the elements of B. a) {2,4,10,12,14,16,18,20,22,24,26,28,30} b) {4,6,8,10,12,14,16,18,20,22,24,26,28,30} c) {2,4,6,8,10,12,14,16,18,20,22,24,26,28,30} d) {2,4,6,8,10,12,14,16,18,20,22,24,26,28 } iii) C ={x:xs is a composite number}.List the elements of C. a) {1 ,8,9,10,12,14,15,16,18,21,22,24,25,26,27,30} b) {1,4,6,8,9,10,12, 16,18,21,22,24,25,26,27,30} c) {1,4,6,8,9,10,12,14,15,16,18,21,22,24, 30} d) {1,4,6,8,9,10,12,14,15,16,18,21,22,24,25,26,27,30} iv) D ={x : x is an odd number}.List the elements of D. a) {1,3,5,7,9,11,13,15,17,19,21,23,25,27,29} b) {1, 7,9,11,13,15,17,19,21,23,25,27,29} c) {1,3,5,7,9, ,15,17,19,21,23,25,27,29} d) {1,3,5,7,9,11,13,15,23,25,27,29} v) The cardinal number of set A is : a) 12 b)11 c)10 d)14​

Answer 1

Answer:

I Think Answer Is Option C) 10