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150 Stamp |
Name : _________________ |
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There are 220 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 800 cents. How many 3-cent stamps are there? |
There are 270 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1340 cents. How many 4-cent stamps are there? |
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| 150 150 130 100 140 140 ( 660 ) 140 110 80 130 100 ( 560 ) [[ 1220 ]] | ||
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