A class of pupils took a test. Only three possible grades, A, B and C were given. $$\frac{1}{9}$$ of the pupils got A, lof them got B. <hr> If the number of pupils in the class is less than 40, how many pupils got C? <br> <input min="0" type="number" id ="imp6pg068q14_1" class="lineinput" placeholder="?" />