122  Stamp
How many stamps? 2

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There are 210 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1620 cents. How many 8-cent stamps are there?



There are 250 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1880 cents. How many 8-cent stamps are there?



There are 210 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 910 cents. How many 3-cent stamps are there?



There are 140 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 940 cents. How many 8-cent stamps are there?



There are 260 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 900 cents. How many 3-cent stamps are there?

There are 230 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 1090 cents. How many 3-cent stamps are there?



There are 230 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1970 cents. How many 8-cent stamps are there?



오늘 3원짜리 9원짜리 우표 총 220 장을 사고, 1080 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 230 stamps which are 6-cent stamps and 8-cent stamps. Altogether they cost 1580 cents. How many 6-cent stamps are there?



There are 200 stamps which are 8-cent stamps and 5-cent stamps. Altogether they cost 1420 cents. How many 8-cent stamps are there?

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