Pass percentage of school for six consecutive years starting from 2003 to 2008 are 45,56,42,61,55 and 52.if the ratio of student who appered for exam in 2003 to 2008 are 2:3:4:3:2:3 then the pass percentage of school in six year together is
Answers
Given : Pass percentage of school for six consecutive years starting from 2003 to 2008 are 45,56,42,61,55 and 52 .
the ratio of student who appeared for exam in 2003 to 2008 are 2:3:4:3:2:3
To Find : pass percentage of school in six year together
Solution:
ratio of student who appered for exam in 2003 to 2008 are 2:3:4:3:2:3
Assume 200x , 300x , 400x , 300x , 200x , 300x
Year Pass % Students Pass students
2003 45 200x 90x
2004 56 300x 168x
2005 42 400x 168x
2006 61 300x 183x
2007 55 200x 110x
2008 52 300x 156x
1700x 875x
Pass % = (875x /1700x) * 100
= 51.47 %
pass percentage of school in six year together is 51.47 %
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