814  Stamp
How many stamps? 2

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There are 240 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1270 cents. How many 3-cent stamps are there?



There are 170 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 970 cents. How many 5-cent stamps are there?



There are 180 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1220 cents. How many 4-cent stamps are there?



There are 140 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 910 cents. How many 4-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1380 cents. How many 6-cent stamps are there?



There are 230 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 1050 cents. How many 5-cent stamps are there?



There are 120 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 870 cents. How many 6-cent stamps are there?



오늘 5원짜리 3원짜리 우표 총 220 장을 사고, 860 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 180 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1200 cents. How many 8-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1370 cents. How many 8-cent stamps are there?



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814    130 110 80 70 140 ( 530 )   130 70 100 120 90 ( 510 )   [[ 1040 ]]