Question 619
<b>In a college there are 5 more seniors than juniors.  In an honor party, 8
percent of the juniors and 5 percent of the seniors were invited.  The total
number of students invited to this party was 10.  How many students were in
the college.
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>>...In a college there are 5 more seniors than juniors...<<
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Translation: 
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S = J + 5
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>>...In an honor party, 8 percent of the juniors and 5 percent of the 
seniors were invited...<<
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Translation:
.08J + .05S were invited
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>>...The total number of students invited to this party was 10...<<
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Therefore .08J + .05S = 10
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So we have this system of two equations in two unknowns.
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S = J + 5
.08J + .05S = 10
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Can you solve this system by substitution?  If not, ask again.
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Answer: 80 seniors and 75 juniors.
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Edwin <font face = "wingdings" size = 7 color="red">J</font>