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190 Stamp |
Name : _________________ |
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There are 160 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 850 cents. How many 5-cent stamps are there? |
There are 170 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1090 cents. How many 7-cent stamps are there? |
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++[[ ]]++ |
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| 190 110 150 100 140 150 ( 650 ) 120 100 140 100 100 ( 560 ) [[ 1210 ]] | ||
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