The following bar graph shows the results of an annual examination in a secondary school.
Read the bar graph (Fig. 23.28) and choose the correct alternative in each of the following:
(i) The pair of classes in which the result of boys and girls are inversely proportional are:
(a) VI, VIII
(b) VI, IX
(c) VIII, IX
(d) VIII, X
(ii) The class having the lowest failure rate of girls is
(a) VII
(b) X
(c) IX
(d) VIII
(iii) The class having the lowest pass rate of students is
(a) VI
(b) VII
(c) VIII
(d) IX