document.write( "Question 252679: The average (arithmetic mean) of a, b, c and d is n. If a + b = 150,
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\n" ); document.write( "\n" ); document.write( "A) a + b + c B) a + b + n C) 4n – 150 D) 4n + 150 E) 4n – 100
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Algebra.Com's Answer #184701 by palanisamy(496)\"\" \"About 
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Given, the average (arithmetic mean) of a, b, c and d is n
\n" ); document.write( " (a+b+c+d)/4 = n
\n" ); document.write( "If a+b = 150, then
\n" ); document.write( " (150+c+d) = 4n
\n" ); document.write( " c+d = 4n-150
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