Q 1: D = {x/x Î N and x lies between 10 and 20}. D = {10,11,12,13,14,15,16,17,18,19} D = {11,12,13,14,15,16,17,18,19,20} D = {11,12,13,14,15,16,17,18,19}

Q 2: B = {x/x+3=6}. B = {1,2,3} B = {} (Null set) B = {3}

Q 5: E = {x/x is a prime number and x < 12}. E = {1,3,5,7,9,11} E = {2,4,6,8,10} E = {2,3,5,7,11}

Q 6: 5 Ï {Prime number}, Write true or false. False True
