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Name : _________________ |
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There are 250 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1800 cents. How many 8-cent stamps are there? |
There are 260 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1960 cents. How many 8-cent stamps are there? |
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| 137 150 130 70 70 120 ( 540 ) 140 130 140 90 100 ( 600 ) [[ 1140 ]] | ||
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