594  Stamp
How many stamps? 2

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There are 240 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 2050 cents. How many 8-cent stamps are there?



There are 170 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 920 cents. How many 4-cent stamps are there?



There are 210 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1230 cents. How many 8-cent stamps are there?



There are 250 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1970 cents. How many 7-cent stamps are there?



There are 240 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1400 cents. How many 5-cent stamps are there?



There are 160 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 790 cents. How many 4-cent stamps are there?



There are 250 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1400 cents. How many 4-cent stamps are there?



오늘 6원짜리 8원짜리 우표 총 280 장을 사고, 1940 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 160 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1050 cents. How many 7-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 950 cents. How many 4-cent stamps are there?



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