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521 Stamp |
Name : _________________ |
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There are 190 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1160 cents. How many 8-cent stamps are there? |
There are 220 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1260 cents. How many 8-cent stamps are there? |
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| 521 100 100 120 110 150 ( 580 ) 120 130 100 130 70 ( 550 ) [[ 1130 ]] | ||
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