<PRE><B>Question 585374</B>
let their weights =
Mark&#39;s =  {{{ m }}}
Steve&#39;s =  {{{ s }}}
Joseph&#39;s =  {{{ j }}}
Tim&#39;s =  {{{ t }}}
Carl&#39;s =  {{{ c }}}
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To convert decimals, move decimal point
2 places to the left
given:
(1) {{{ m = 1.1s }}}
(2) {{{ j/t = 10/11 }}}
(3) {{{ c/m = 6/7 }}}
(4) {{{ c = 1.2j }}}
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Normally you couldn&#39;t solve this for all 
their weights because there are 5 unknowns
and only 4 equations.
They only want the one who weighs the least,
so I can find that.
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(3) tells me Mark weighs more than Carl
(4) tells me Carl weighs more than Joseph
So far the order is
Mark 
Carl
 Joseph
Now substitute (1) into (3)
(3) {{{ c/m = 6/7 }}}
(3) {{{ c/(1.1s) = 6/7 }}}
(3) {{{7c = 6*1.1s }}}
(3) {{{ c/s = (6.6/7) }}}
So, Steve weighs more than Carl, but (1) 
says Mark weighs more than steve, so
the order now is
Mark
Steve
Carl
Joseph
------------
(2) says Tim weighs more than Joseph
No matter where Tim fits in, Joseph Has
to weigh the least
Hope I got it</PRE>