Question

Write the given set in Roster form and also in Set-Builder Form:

(b) Set of odd number between $20$ and $35.$

Answer 1

Step: Writing the given set in Roster form and also in Set-Builder Form.
The odd number between $20$ and $35$ are $21,23,25,27,29,31$ and $33.$
Hence, the required roster form is:
$\{21,23,25,27,29,31,33\}$ and the Set builder form is:
$\left\{\text{x : x is an odd number between 20 and 35}\right\}.$