The given bar graph shows the number of students of two schools over a period of six years.

In the bar graph, what is the ratio of the average of the total students from school A to the average of the total students from school B?

429 : 370

Total number of students of A = 640 + 800 + 500 + 700 + 900 + 750 = 4290

Average students of A =   \(\frac{4290}{6}\)

Total number of students of B = 550 + 820 + 600 + 750 + 500 + 480 = 3700

Average students of B = \(\frac{3700}{6}\) 

Average students of A    :     Average students of B

     \(\frac{4290}{6}\)   :       \(\frac{3700}{6}\) 

                   429           :                370