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| Math Central | Quandaries & Queries |
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Question from Joanne, a student: Ashley weighs 5kgs more than Joyce. Their total weight is 41 kgs. What is the weight of Ashley? |
Hi Joanne,
(Joyce's weight) + (Ashley's weight) = 41 kgs
But Ashley weight is 5 kg more than Joyce's weight so
(Joyce's weight) + (Joyce's weight + 5 kg) = 41 kgs.
Rearranging I get
\[2 \times \mbox{ (Joyce's weight)} + 5 \mbox{ kgs} = 41 \mbox{ kgs.}\]
What is Joyce's weight?
Penny
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