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177 Stamp |
Name : _________________ |
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There are 180 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 860 cents. How many 6-cent stamps are there? |
There are 230 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1560 cents. How many 6-cent stamps are there? |
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| 177 70 90 110 100 140 ( 510 ) 140 120 130 100 100 ( 590 ) [[ 1100 ]] | ||
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