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822 Stamp |
Name : _________________ |
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There are 180 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 790 cents. How many 3-cent stamps are there? |
There are 240 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1350 cents. How many 7-cent stamps are there? |
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| 822 130 110 150 110 140 ( 640 ) 130 130 110 120 120 ( 610 ) [[ 1250 ]] | ||
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