



 
Hi Ric, Suppose you have the box with the oranges in it on a scale. like a kitchen scale. The scale reads 9 pounds. Twothirds of the oranges are eaten and what remains on the scale weighs 4 pounds. Hence the oranges that were eaten weigh 5 pounds. Thus twothirds of the oranges weighs 5 pounds. How much does onethird of the oranges weigh? How much do all of the oranges weigh? How much does the empty box weigh? Penny 



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