document.write( "Question 738188: If a boy is 5 years old. and his sister is 3 times his age. how old will the sister be when the boy is 12 years old ?? \n" ); document.write( "

Algebra.Com's Answer #450730 by lenny460(1073) $\"\"$ $\"About$

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If a boy is 5 years old, and his sister is 3 times his age. How old will the sister be when the boy is 12 years old ?\r
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\n" ); document.write( "\n" ); document.write( "If the boy is 5 years old then the sister's age is:\r
\n" ); document.write( "\n" ); document.write( "5 * 3 = 15 years old\r
\n" ); document.write( "\n" ); document.write( "Therefore:\r
\n" ); document.write( "\n" ); document.write( "12 - 5 = 7\r
\n" ); document.write( "\n" ); document.write( "When the boy will be 12 years old the sister will be:\r
\n" ); document.write( "\n" ); document.write( "15 + 7 = 22 years old\r
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\n" ); document.write( "\n" ); document.write( "Answer:\r
\n" ); document.write( "\n" ); document.write( "22 years old\r
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\n" ); document.write( "\n" ); document.write( "Lennox Obuong
\n" ); document.write( "Algebra Tutor
\n" ); document.write( "Nairobi, Kenya \n" ); document.write( "

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