i) B = {x : x is a natural number smaller than 6}.

Question

Write the following sets in roster form. 

i) B = {x : x is a natural number smaller than 6}. 

ii) C = {x : x is a two-digit natural number such that the sum of its digits is 8}. 

iii) D = {x : x is a prime number which is a divisor of 60}. 

iv) E = {x : x is an alphabet in BETTER}.

Answer 1

i) B = {1, 2, 3, 4, 5} 

ii) C = {17, 26, 35, 44, 53, 62, 71} 

iii) D = {5, 3} 

iv) E = {B, E, T, R}