document.write( "Question 1148765: A purse contains 50 coins of 25-paise and 50-paise denominations.if the total value of the money in the purse is ₹15,find the number of each type of coins. \n" ); document.write( "
Algebra.Com's Answer #770106 by ikleyn(52810)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "x for 25-paise coins and y for 50-paise coins.\r\n" );
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document.write( "      x +    y =   50     (1)    (counting coins)   \r\n" );
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document.write( "    25x +  50y = 1500     (2)    (counting money in paises)\r\n" );
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document.write( "In equation (2), cancel the common factor 25 on both sides.  Keep equation (1) as is. You will get modified EQUIVALENT system\r\n" );
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document.write( "      x +   y =   50     (1')   \r\n" );
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document.write( "      x +  2y =  60      (2')\r\n" );
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document.write( "Now subtract equation (1') from equation (2').  You will get\r\n" );
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document.write( "      y        = 10.\r\n" );
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document.write( "ANSWER.  10  of 50-paise coins and the rest, 50-10 = 40  of 25-paise coins.\r\n" );
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document.write( "CHECK.  100*50 + 40*25 = ₹15.   ! Precisely correct !\r\n" );
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\n" ); document.write( "\n" ); document.write( "On coin problems,  see the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Coin problems\r
\n" ); document.write( "\n" ); document.write( "    - More Coin problems\r
\n" ); document.write( "\n" ); document.write( "    - Solving coin problems without using equations\r
\n" ); document.write( "\n" ); document.write( "    - Kevin and Randy Muise have a jar containing coins\r
\n" ); document.write( "\n" ); document.write( "    - Typical coin problems from the archive\r
\n" ); document.write( "\n" ); document.write( "    - Three methods for solving standard (typical) coin word problems\r
\n" ); document.write( "\n" ); document.write( "    - More complicated coin problems\r
\n" ); document.write( "\n" ); document.write( "    - Solving coin problems mentally by grouping without using equations\r
\n" ); document.write( "\n" ); document.write( "    - Non-typical coin problems \r
\n" ); document.write( "\n" ); document.write( "    - Santa Claus helps solving coin problem\r
\n" ); document.write( "\n" ); document.write( "    - OVERVIEW of lessons on coin word problems\r
\n" ); document.write( "\n" ); document.write( "in this site.\r
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\n" ); document.write( "\n" ); document.write( "You will find there the lessons for all levels - from introductory to advanced,
\n" ); document.write( "and for all methods used - from one equation to two equations and even without equations. \r
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\n" ); document.write( "\n" ); document.write( "A convenient place to quickly observe these lessons from a  \"bird flight height\"  (a top view)  is the last lesson in the list.\r
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\n" ); document.write( "\n" ); document.write( "Read them and become an expert in solution of coin problems.\r
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\n" ); document.write( "\n" ); document.write( "Also,  you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this online textbook under the topic \"Coin problems\".\r
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\n" ); document.write( "\n" ); document.write( "Save the link to this online textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-I
\n" ); document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "to your archive and use it when it is needed.\r
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