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764 Stamp |
Name : _________________ |
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There are 210 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1410 cents. How many 5-cent stamps are there? |
There are 170 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1140 cents. How many 7-cent stamps are there? |
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| 764 120 150 120 110 110 ( 610 ) 120 80 130 110 70 ( 510 ) [[ 1120 ]] | ||
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