document.write( "Question 992736: Rs.49 were divided among 150 childrens.Each girl got 50 paisa and a boy 25 paisa.How many boys were there?
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Algebra.Com's Answer #612281 by Cromlix(4381)\"\" \"About 
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Hi there,
\n" ); document.write( "Rs.49 = 4900 paisa.
\n" ); document.write( "150 children
\n" ); document.write( "Girls - 'x'
\n" ); document.write( "Boys - 'y'
\n" ); document.write( "x + y = 150 ......(1)
\n" ); document.write( "50x + 25y = 4900.....(2)
\n" ); document.write( "Multiply (1) by 25
\n" ); document.write( "25x + 25y = 3750 .....(1)
\n" ); document.write( "50x + 25y = 4900 ......(2)
\n" ); document.write( "Subtract (1) from (2)
\n" ); document.write( "25x .....= 1150
\n" ); document.write( "x = 46
\n" ); document.write( "Substitute x = 46 into (1)
\n" ); document.write( "x + y = 150
\n" ); document.write( "46 + y = 150
\n" ); document.write( "y = 150 - 46
\n" ); document.write( "y = 104
\n" ); document.write( "There were 46 girls
\n" ); document.write( "and 104 boys.
\n" ); document.write( "Hope this helps :-)\r
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