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131 Stamp |
Name : _________________ |
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There are 280 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 1550 cents. How many 6-cent stamps are there? |
There are 200 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1500 cents. How many 7-cent stamps are there? |
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| 131 150 140 140 140 140 ( 710 ) 150 150 100 100 70 ( 570 ) [[ 1280 ]] | ||
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