document.write( "Question 445412: Mary is twice as old as John and half as old as Bob.in 22 years time, Bob will be twice as old as John. how old is Mary? \n" ); document.write( "
Algebra.Com's Answer #306795 by rwm(914)\"\" \"About 
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m=2j
\n" ); document.write( "m=b/2
\n" ); document.write( "(b+22)=2*(j+22)
\n" ); document.write( "b=44
\n" ); document.write( "j=11
\n" ); document.write( "m=22
\n" ); document.write( "
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