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540 Stamp |
Name : _________________ |
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There are 150 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1100 cents. How many 7-cent stamps are there? |
There are 240 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1600 cents. How many 5-cent stamps are there? |
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++[[ ]]++ |
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| 540 100 130 90 130 130 ( 580 ) 140 110 100 150 80 ( 580 ) [[ 1160 ]] | ||
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