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158 Stamp |
Name : _________________ |
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There are 280 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1640 cents. How many 4-cent stamps are there? |
There are 190 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 820 cents. How many 4-cent stamps are there? |
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| 158 150 130 120 120 120 ( 640 ) 130 130 110 70 100 ( 540 ) [[ 1180 ]] | ||
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