Question 1161495
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            I want to show you the way to solve the problem in a few lines.



<pre>
It is arithmetic progression with the common difference of - {{{3/4}}}.


The distance from the first term of 24 to the last term of -36 is 60 units on the number line.


There are  {{{60/((3/4))}}} = 20*4 = 80 gaps between the first and the last terms.


Hence, -36 is the 81-th term of the progression.    <U>ANSWER</U>
</pre>

Solved.