document.write( "Question 511671: Raymond is as twice as old as Rona now. Twenty years ago Raymond was six times as old as Rona. What are there present ages? \n" ); document.write( "
Algebra.Com's Answer #342345 by Maths68(1474)![]() ![]() You can put this solution on YOUR website! Raymond is as twice as old as Rona now. Twenty years ago Raymond was six times as old as Rona. What are there present ages?\r \n" ); document.write( "\n" ); document.write( "Let \n" ); document.write( "Present age of Raymond = r \n" ); document.write( "Present age of Rona = a\r \n" ); document.write( "\n" ); document.write( "Raymond is as twice as old as Rona now \n" ); document.write( "r=2a...........(1)\r \n" ); document.write( "\n" ); document.write( "Twenty years ago means we have to subtract 20 from their present age \n" ); document.write( "r-20=a-20 \n" ); document.write( "Then \n" ); document.write( "Raymond was six times as old as Rona \n" ); document.write( "r-20=6(a-20) \n" ); document.write( "r-20=6a-120 \n" ); document.write( "r-6a=-120+20 \n" ); document.write( "r-6a=-100 \n" ); document.write( "Put the value of r from (1) to above equation \n" ); document.write( "r-6a=-100 \n" ); document.write( "2a-6a=-100 \n" ); document.write( "-4a=-100 \n" ); document.write( "-4a/-4=-100/-4 \n" ); document.write( "a=25 \n" ); document.write( "Put the value of a in (1) \n" ); document.write( "r=2a \n" ); document.write( "r=2(25) \n" ); document.write( "r=50\r \n" ); document.write( "\n" ); document.write( "Present age of Raymond = r = 50 years old \n" ); document.write( "Present age of Rona = a = 25 years old\r \n" ); document.write( "\n" ); document.write( "Check \n" ); document.write( "Twenty years ago Raymond was six times as old as Rona \n" ); document.write( "Raymond=50-20=30 \n" ); document.write( "Rona=25-20=5\r \n" ); document.write( "\n" ); document.write( "Raymond age = 6 * Rona age \n" ); document.write( "30=6*5 \n" ); document.write( "30=30 \n" ); document.write( " |