document.write( "Question 252616: 1. A three-digit number divisible by 5 has a hundreds digit that is 2 more than the tens digit. If the number is 43 times the sum of the digit , what is the number? \r
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document.write( "Thank you very much for answering my first question . It helps A lot. Thanks again \n" );
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Algebra.Com's Answer #184635 by palanisamy(496)![]() ![]() ![]() You can put this solution on YOUR website! The given number is divisible by 5. \n" ); document.write( "So the unit place is either 0 or 5 \n" ); document.write( "First let us take the unit place to be 0. \n" ); document.write( "Let the tenth place be x. \n" ); document.write( "Given, hundreds digit that is 2 more than the tens digit. \n" ); document.write( "So the hundreth place = x+2. \n" ); document.write( "The sum of the digits = x+2+x+0 = 2x+2 \n" ); document.write( "The valve of the number = (x+2)*100+x*10+0 \n" ); document.write( " = 100x+200+10x \n" ); document.write( " = 110x+200 \r \n" ); document.write( "\n" ); document.write( "Given, the number is 43 times the sum of the digit \n" ); document.write( " 110x+200 = 43*(2x+2) \n" ); document.write( " 110x-86x = 86-200 \n" ); document.write( " 24x = -114 \n" ); document.write( " x = -114/24 \n" ); document.write( "This is not possible because x is an inteder. \n" ); document.write( "Next, \n" ); document.write( "let us take the unit place to be 5. \n" ); document.write( "Let the tenth place be x. \n" ); document.write( "Given, hundreds digit that is 2 more than the tens digit. \n" ); document.write( "So the hundreth place = x+2. \n" ); document.write( "The sum of the digits = x+2+x+5 = 2x+7 \n" ); document.write( "The valve of the number = (x+2)*100+x*10+5 \n" ); document.write( " = 100x+200+10x+5 \n" ); document.write( " = 110x+205 \r \n" ); document.write( "\n" ); document.write( "Given, the number is 43 times the sum of the digit \n" ); document.write( " 110x+205 = 43*(2x+7) \n" ); document.write( " 110x-86x = 301-205 \n" ); document.write( " 24x= 96 \n" ); document.write( " x= 96/24 \n" ); document.write( " x=4 \n" ); document.write( "So the tenth place = 4. \n" ); document.write( "So the hundreth place = x+2 = 4+2 = 6 \n" ); document.write( "Therefore the given number is 645 \n" ); document.write( " \r \n" ); document.write( "\n" ); document.write( " \r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |