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993 Stamp |
Name : _________________ |
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There are 220 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1690 cents. How many 8-cent stamps are there? |
There are 180 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1420 cents. How many 7-cent stamps are there? |
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| 993 150 130 140 90 150 ( 660 ) 100 140 80 140 140 ( 600 ) [[ 1260 ]] | ||
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