document.write( "Question 1208465: The basic one-way air fare for a child aged between 3 and 10 years costs half the regular basic fare for an adult plus a reservation charge that is the same on the child's ticket as on the adult's ticket. One reserved ticket for an adult costs $216 and the cost of a reserved ticket for an adult and a child (aged between 3 and 10) costs $327. What is the basic fare for the journey for an adult? \n" ); document.write( "
Algebra.Com's Answer #847211 by MathTherapy(10552)\"\" \"About 
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document.write( "The basic one-way air fare for a child aged between 3 and 10 years costs half the regular basic fare for an adult plus a reservation charge that is the same on the child's ticket as on the adult's ticket. One reserved ticket for an adult costs $216 and the cost of a reserved ticket for an adult and a child (aged between 3 and 10) costs $327. What is the basic fare for the journey for an adult?\r\n" );
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document.write( "Let regular basic fare for an adult be A\r\n" );
document.write( "Then regular basic fare for a child  = \"A%2F2\" <=== The basic one-way air fare for a child aged between 3 and 10 years\r\n" );
document.write( "                                               costs half the regular basic fare for an adult. \r\n" );
document.write( "Let reservation charge be R\r\n" );
document.write( "Then cost of one reserved ticket for an adult = A + R = 216 ----- eq (i)\r\n" );
document.write( "Since the cost of a reserved ticket for an adult and a child is $327, then cost of a reserved ticket for a child is\r\n" );
document.write( "$327 - $216 = $111, and the cost EQUATION for a child's reserved ticket is: \"matrix%281%2C3%2C+A%2F2+%2B+R%2C+%22=%22%2C+111%29\" ----- eq (ii)\r\n" );
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document.write( "                                     \r\n" );
document.write( "                                       \"matrix%282%2C3%2C+A+-+A%2F2%2C+%22=%22%2C+105%2C+A%2F2%2C+%22=%22%2C+105%29\" ----- Subtracting eq (ii) from eq (i)\r\n" );
document.write( "Regular basic fare for an adult, or A = $210 ----- Cross-multiplying
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