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633 Stamp |
Name : _________________ |
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There are 210 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1230 cents. How many 3-cent stamps are there? |
There are 180 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1050 cents. How many 7-cent stamps are there? |
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| 633 110 100 100 90 120 ( 520 ) 110 110 140 150 110 ( 620 ) [[ 1140 ]] | ||
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