document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1157579>Question 1157579</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Roscoe and Conrad were counting money in their piggy banks.  They only had quarters and dimes.  They had a total of 58 coins.  The value of the coins was $9.85.  Find the number of quarters and dimes the boys had.<BR>\n" );
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document.write( "An informal solution using logical reasoning and a bit of mental arithmetic....<br><BR>\n" );
document.write( "(1) 58 coins all dimes would have a value of $5.80.  The actual value is $9.85-$5.80 = $4.05 more.<BR>\n" );
document.write( "(2) Exchanging a dime for a quarter keeps the number of coins at 58 and increases the total value by 15 cents.<BR>\n" );
document.write( "(3) The number of dimes we need to exchange for quarters to make the additional $4.05 is 405/15 = 27.<br><BR>\n" );
document.write( "ANSWER:<BR>\n" );
document.write( "27 quarters<BR>\n" );
document.write( "58-27 = 31 dimes<br><BR>\n" );
document.write( "CHECK:<BR>\n" );
document.write( "27(25)+31(10) = 675+310 = 985<br><BR>\n" );
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