document.write( "Question 208720: Each of the integers h,m and n is divisible by 3. which of the following integers is always dividing by 9?\r
\n" ); document.write( "\n" ); document.write( "I. hm
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\n" ); document.write( "(A) I only (B) II only (C) III only (D) II and III only (E) I,II and III \n" ); document.write( "

Algebra.Com's Answer #158427 by Edwin McCravy(20060) $\"\"$ $\"About$

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Each of the integers h,m and n is divisible by 3. which of the following integers is always dividing by 9?
\n" ); document.write( "I. hm
\n" ); document.write( "II. h + m
\n" ); document.write( "III. h + m + n\r
\n" ); document.write( "\n" ); document.write( "(A) I only (B) II only (C) III only (D) II and III only (E) I,II and III
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document.write( "You can rule out II by 6 + 9 = 15, 6 and 9 \r\n" );
document.write( "are both divisible by 3, but 15 is not \r\n" );
document.write( "divisible by 9,\r\n" );
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document.write( "You can rule out III by 6 + 9 + 15 = 30, 6, \r\n" );
document.write( "9 and 15 are all divisible by 3, but 30 is \r\n" );
document.write( "not divisible by 9,\r\n" );
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document.write( "However h and m each have a factor of 3, \r\n" );
document.write( "therefore hm must contain two factors of 3.  For \r\n" );
document.write( "example if h=6 and m = 12 then hm=6*12=72 \r\n" );
document.write( "which is divisible by 9.\r\n" );
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document.write( "Therefore, the correct choice is (A), I only\r\n" );
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document.write( "Edwin

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