Answer
{x|x∈ N and 61$\leq$x$\leq$ 89 }
Work Step by Step
{61,62,63,64,… 89} From the given question all the elements are natural numbers and whose values are greater than equal to 61 but less than equal to 89 W is set of elements ‘x’ such that x is a natural number and x is greater than equal to 61 but less than equal to 89 W ={x|x∈ N and 61$\leq$x$\leq$ 89 }.
