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547 Stamp |
Name : _________________ |
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There are 210 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1390 cents. How many 4-cent stamps are there? |
There are 170 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1050 cents. How many 7-cent stamps are there? |
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| 547 100 150 140 110 110 ( 610 ) 100 90 150 120 130 ( 590 ) [[ 1200 ]] | ||
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