877  Stamp
How many stamps? 2

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There are 180 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 960 cents. How many 5-cent stamps are there?



There are 190 stamps which are 8-cent stamps and 4-cent stamps. Altogether they cost 1280 cents. How many 8-cent stamps are there?



There are 230 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1130 cents. How many 3-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 620 cents. How many 4-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 820 cents. How many 4-cent stamps are there?



There are 240 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 1070 cents. How many 5-cent stamps are there?



There are 210 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 990 cents. How many 3-cent stamps are there?



오늘 7원짜리 9원짜리 우표 총 190 장을 사고, 1530 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



There are 190 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 930 cents. How many 7-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1340 cents. How many 4-cent stamps are there?



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877    120 130 120 110 100 ( 580 )   110 90 90 90 110 ( 490 )   [[ 1070 ]]