Question

{x:x is a two digit natural number and the sum of its digits is less than 8} write it in rooster form​

Answer 1

Answer:

{x:x is a two digit natural number and the sum of its digits is less than 8}

Roster Form :- {10,11,12,13,14,15,16,20,21,22,23,24,25,30,31,32,33,34,40,41,42,43,50,51,52,60,61,70}.

Answer 2

Answer:

c = {10,11,12,13,14,15,16,20,21,22,23,24,25,30,31,32,33,34,40,41,42,43,50,51,52,60,61,70}