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171 Stamp |
Name : _________________ |
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There are 260 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1370 cents. How many 4-cent stamps are there? |
There are 220 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1240 cents. How many 5-cent stamps are there? |
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| 171 150 120 140 90 130 ( 630 ) 150 100 110 120 70 ( 550 ) [[ 1180 ]] | ||
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