Question

Write the set $A=\left\{5,10,15,20,25,30\right\}$ in set builder form.

Answer 1

In set builder method, we define a set by stating the properties satisfied by the elements.

As we can see in the given set $A$, the elements $5,10,15,20,25,30$ are the multiples of $5$ and they do not exceed $30$.

Hence in set builder form, the given set can be represented as $A=\left\{x:xisamultipleof5,x\le 30\right\}$