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717 Stamp |
Name : _________________ |
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There are 220 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1520 cents. How many 6-cent stamps are there? |
There are 190 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 990 cents. How many 3-cent stamps are there? |
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| 717 120 100 110 150 100 ( 580 ) 120 120 100 110 150 ( 600 ) [[ 1180 ]] | ||
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