Question : The given bar graph shows the number of students of two schools over six years.
In the bar graph, what is the ratio of the students taken for years 2008, 2012, and 2013 together from school A to the students taken for the years 2009, 2010, and 2011 together from school B?
Option 1: 118: 251
Option 2: 229: 217
Option 3: 251: 118
Option 4: 217: 229
Correct Answer: 229: 217
Solution :
The average of total students from school A 2008, 2012, and 2013 = 640 + 900 + 750 = 2290
The average of total students from school B in 2009, 2010, and 2011 = 820 + 600 + 750 = 2170
The required ratio = 2290 : 2170
$\therefore$ The ratio of the average of total students from school B to the average of the total students from school A is 229: 217.
Hence, the correct answer is 229: 217.
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