• question_answer Direction: The bar graph shows the number of pupils in a class taking part in a mathematics competition over five years.                   How many pupils took part in the competition over the five years? A)  31                               B)  50                   C)  40                   D)    45

The total number of pupils taking part in the competition $\text{= 3 + 6 + 9 + 10 + 12 = 40}$