document.write( "Question 636416: Grandma is 60 years old and her grandchild is 4 years old.
\n" ); document.write( "When will the grandma be 8 times older than the grandchild?
\n" ); document.write( "When will grandma be 5 times as old as grandchild?
\n" ); document.write( "When will grandma be only 3 times as old as the grandchild? \n" ); document.write( "
Algebra.Com's Answer #401007 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Grandma is 60 years old and her grandchild is 4 years old.
\n" ); document.write( ":
\n" ); document.write( "When will the grandma be 8 times older than the grandchild?
\n" ); document.write( "let a = no. of years for this to be true
\n" ); document.write( "a + 60 = 8(a+4)
\n" ); document.write( "a + 60 = 8a + 32
\n" ); document.write( "60 - 32 = 8a - a
\n" ); document.write( "28 = 7a
\n" ); document.write( "a = 28/7
\n" ); document.write( "a = 4 yrs she will be 8 times as old; (64 and 8)
\n" ); document.write( ":
\n" ); document.write( "When will grandma be 5 times as old as grandchild?
\n" ); document.write( "let b = no. of years for this to be true
\n" ); document.write( "b + 60 = 5(b+4)
\n" ); document.write( "b + 60 = 5b + 20
\n" ); document.write( "60 - 20 = 5b - b
\n" ); document.write( "40 = 4b
\n" ); document.write( "b = 40/4
\n" ); document.write( "b = 10 yrs she will be 5 times as old (70 and 14)
\n" ); document.write( ":
\n" ); document.write( "When will grandma be only 3 times as old as the grandchild
\n" ); document.write( "let c = no. of yrs for this to be true
\n" ); document.write( "You should be able to handle this last one by yourself \n" ); document.write( "
\n" );