document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1203168>Question 1203168</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Barry has a bag of marbles. 3/8 of the marbles are red. 70% of the remaining marbles are yellow. The other 12 marbles are green. How many marbles are there in the bag altogether? </SPAN>\n" );
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document.write( "Given that 3/8 of the marbles are red, let 8x be the total number of marbles and 3x be the number of red marbles.  Then the number of marbles of other colors is 8x-3x = 5x.<br><BR>\n" );
document.write( "70% of the remaining marbles are yellow. 70% of 5x is 0.7(5x) = 3.5x.<br><BR>\n" );
document.write( "The total number of red and yellow marbles is 3x+3.5x = 6.5x; the total number of marbles is 8x.  So the number of green marbles is 8x-6.5x = 1.5x.<br><BR>\n" );
document.write( "The number of green marbles is 12:<br><BR>\n" );
document.write( "1.5x = 12<BR>\n" );
document.write( "x = 12/1.5 = 8<br><BR>\n" );
document.write( "ANSWER: The total number of marbles in the bag is 8x = 64<br><BR>\n" );
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