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179 Stamp |
Name : _________________ |
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There are 150 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 930 cents. How many 3-cent stamps are there? |
There are 220 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1660 cents. How many 7-cent stamps are there? |
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| 179 70 130 140 90 140 ( 570 ) 100 100 150 130 140 ( 620 ) [[ 1190 ]] | ||
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