Question

1) Write set C = { x: x is a two digit natural number such that
sum of its digits is 8} in Roster form.
motull set?​

Answer 1

Explanation:

The two digit numbers having sum equal to 8 are: 17,26,35,44,53,62,71,80.

This can be written as:

C={17,26,35,44,53,62,71,80}