876  Stamp
How many stamps? 2

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There are 200 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1040 cents. How many 4-cent stamps are there?



There are 130 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 700 cents. How many 4-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1640 cents. How many 8-cent stamps are there?



There are 150 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 760 cents. How many 6-cent stamps are there?



There are 210 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1650 cents. How many 7-cent stamps are there?



There are 210 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1130 cents. How many 5-cent stamps are there?



There are 260 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1340 cents. How many 7-cent stamps are there?



오늘 3원짜리 5원짜리 우표 총 210 장을 사고, 790 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 240 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1550 cents. How many 6-cent stamps are there?



There are 120 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 740 cents. How many 7-cent stamps are there?



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876    140 70 130 80 120 ( 540 )   130 140 130 130 70 ( 600 )   [[ 1140 ]]