document.write( "Question 52339: when a number is decreased by 30% the result is 140, what is the number?\r
\n" ); document.write( "\n" ); document.write( "when 50% of a number is added to it the result if 180, what is the number?\r
\n" ); document.write( "\n" ); document.write( "thank you very much.. \n" ); document.write( "
Algebra.Com's Answer #34867 by sumanth18(2)\"\" \"About 
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when a number is decreased by 30% the result is 140, what is the number? \r
\n" ); document.write( "\n" ); document.write( "Lets begin by assuming the original number to be X.
\n" ); document.write( "Then according to the statement :
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\n" ); document.write( " X-(30/100)*X= 140\r
\n" ); document.write( "\n" ); document.write( "Multiply be denominator 100 on both sides we get,
\n" ); document.write( "100X-30X= 14000
\n" ); document.write( "70X=14000
\n" ); document.write( "i.e X=14000/70=200
\n" ); document.write( "Therefore the value of X=200\r
\n" ); document.write( "\n" ); document.write( "Cross Verification
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\n" ); document.write( "30% of 200 is 200*30/100=60
\n" ); document.write( "Decreasing 200 by 60 we get, 200-60 =140\r
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\n" ); document.write( "\n" ); document.write( "2) when 50% of a number is added to it the result if 180
\n" ); document.write( "Let original number be X.
\n" ); document.write( "In this case we get,
\n" ); document.write( " X+(50/100)X=180
\n" ); document.write( "Solving using above way we get X=120\r
\n" ); document.write( "\n" ); document.write( "Cross Verification
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\n" ); document.write( "50% of 120 is 120*50/100=60
\n" ); document.write( "Adding 60+120=180
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