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823 Stamp |
Name : _________________ |
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There are 230 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1680 cents. How many 6-cent stamps are there? |
There are 170 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 660 cents. How many 3-cent stamps are there? |
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| 823 130 100 110 150 150 ( 640 ) 120 120 100 120 70 ( 530 ) [[ 1170 ]] | ||
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