Mathematics, 14.01.2020 06:31, cyberdac01

Paul has 2/3 as many postcards as shawn. the number of postcards shawn has is 4/5 of the number of postcards tim has. if the three boys have 280 postcards altogether, how many more postcards does tim have than paul?

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Paul has 2/3 as many postcards as shawn. the number of postcards shawn has is 4/5 of the number of p...