document.write( "Question 1199564: Johnny has some nickels and dimes in his pocket, and the change is worth $0.75. He has twice
\n" ); document.write( "as many dimes as nickels. How many of each type of coin does Johnny have? \n" ); document.write( "
Algebra.Com's Answer #833500 by ikleyn(52864)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "According to the condition, it is possible to group coins in sets,  each containing  2  dimes and  1  nickel.\r
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\n" ); document.write( "\n" ); document.write( "Each set is worth   2*10 + 5 = 25 cents.\r
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\n" ); document.write( "\n" ); document.write( "So,  the number of such sets is  75/25 = 3,  giving  3  nickels and  6  dimes as the   ANSWER.\r
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\n" ); document.write( "\n" ); document.write( "Grouping is the method of solving such problems  MENTALLY,  without using equations.\r
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\n" ); document.write( "\n" ); document.write( "To see many other similar solved problem by this method,  look into the lesson\r
\n" ); document.write( "\n" ); document.write( "    - Solving coin problems mentally by grouping without using equations\r
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