document.write( "Question 421911: How to present the solution of the following problem on Excel spread sheet as well as on TI-84 calculator?
\n" ); document.write( "(I shall be thankfull to you.I am not much expert in using Excel and calculator.I need this for my class presentation. I need help,please.)
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\n" ); document.write( "The ratio of boys to girls in Mr Peter'class is 3:4. On the last day of exam 3/4 of the boys passed the exam and 4/5 of the girls passed. If a student's exam paper is chosen at random, what is the probability that it has a passing grade?
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Algebra.Com's Answer #294549 by sudhanshu_kmr(1152)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "probability that chosen paper has a passing grade = [3*3/4 + 4*4/5]/ (3+4)\r
\n" ); document.write( "\n" ); document.write( "= 109/140\r
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