document.write( "Question 1160642: Hello
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\n" ); document.write( "\n" ); document.write( "There are 42 children in a canteen. 2/5 of the boys and 1/2 of the girls like to eat fried chicken wings. There are 19 children who like to eat fried chicken wings. Find the number of boys in the canteen.\r
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Algebra.Com's Answer #784002 by MathTherapy(10552)\"\" \"About 
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\n" ); document.write( "Hello
\n" ); document.write( "How do I go about solving this problem?\r
\n" ); document.write( "\n" ); document.write( "There are 42 children in a canteen. 2/5 of the boys and 1/2 of the girls like to eat fried chicken wings. There are 19 children who like to eat fried chicken wings. Find the number of boys in the canteen.\r
\n" ); document.write( "\n" ); document.write( "Thanks in advance.
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Let number of boys in canteen, be B
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document.write( "Then number of girls in canteen is: 42 - B
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document.write( "Number of boys who eat FCW: \"matrix%281%2C3%2C+%282%2F5%29+%2A+B%2C+or%2C+2B%2F5%29\"
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document.write( "Number of girls who eat FCW: \"matrix%281%2C3%2C+%281%2F2%29+%2A+%2842+-+B%29%2C+or%2C+%2842+-+B%29%2F2%29\"
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document.write( "Since 19 of the boys and girls in the canteen eat FCW, then we get: \"matrix%281%2C3%2C+2B%2F5+%2B+%2842+-+B%29%2F2%2C+%22=%22%2C+19%29\" 
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document.write( "2(2B) + 5(42 - B) = 10(19) ------ Multiplying by LCD, 10
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document.write( "4B + 210 - 5B = 190 
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document.write( "4B - 5B = 190 - 210
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document.write( "- B = - 20
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document.write( "Number of boys in canteen, or  \n" );
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