document.write( "Question 1009543: Please help me with this problem:\r
\n" ); document.write( "\n" ); document.write( "Only tenth-, eleventh-, and twelfth-grade students attend Washington High School. The ratio of tenth graders to the school’s total student population is 86:255, and the ratio of eleventh graders to the school’s total student population is 18:51. If 1 student is chosen at random from the entire school, which grade is that student most likely to be in?
\n" ); document.write( "A. Tenth
\n" ); document.write( "B. Eleventh
\n" ); document.write( "C. Twelfth
\n" ); document.write( "D. All grades are equally likely.
\n" ); document.write( "E. Cannot be determined from the given information\r
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Algebra.Com's Answer #625140 by macston(5194)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "tenth grade=(86/255)(100%)=33.7%
\n" ); document.write( "eleventh grade=(18/51)(100%)=35.3%
\n" ); document.write( "twelfth grade=100%-(33.7%+35.3%)=100%-69%=31%
\n" ); document.write( "ANSWER: One student chosen at random is most
\n" ); document.write( "likely in the eleventh grade, because eleventh
\n" ); document.write( "grade is the highest percent of the student body.
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