document.write( "Question 771823: 3 things cost rs. 100.. 2nd one is the half of first. 3rd one is the half of 2nd.. how much cost of the total three??? \n" ); document.write( "
Algebra.Com's Answer #470495 by ramkikk66(644)\"\" \"About 
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document.write( "3 things cost rs. 100.. 2nd one is the half of first. 3rd one is the half of 2nd.. how much cost of the total three???\r\n" );
document.write( "Ans:\r\n" );
document.write( "Cost of the total 3 is already given to be 100!\r\n" );
document.write( "I assume you are asking for the cost of each item.\r\n" );
document.write( "Let the first item cost x\r\n" );
document.write( "Then the 2nd costs x/2\r\n" );
document.write( "And the 3rd costs (x/2)/2 (i.e. half of the second) = x/4\r\n" );
document.write( "Sum = \"x+%2B+x%2F2+%2B+x%2F4+=+100\"\r\n" );
document.write( "Multiplying by 4 to remove the fractional part\r\n" );
document.write( "\"4%2Ax+%2B+2%2Ax+%2B+x+=+400\"\r\n" );
document.write( "\"7%2Ax+=+400\"\r\n" );
document.write( "\"x+=+400%2F7\" approx Rs. 57.14 which is the cost of the 1st item\r\n" );
document.write( "Second item = 200/7 = 28.57 approx\r\n" );
document.write( "Third item = 100/7 = 14.28 approx\r\n" );
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