Question 1176617
<pre><font face = "consolas" color = "indigo" size = 3><b>
Hi
the ratio of right-handed to left-handed students is 7:2.
(More what one would expect)
Using constant of Proportionality:

 7c + 2c = 36
    9c = 36 
     c = 4
           8 the number of lefthanded in class.

 28 + 8 = 36  checks.
Wish You the Best in your Studies.
</font></b></pre>