249  Stamp
How many stamps? 2

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There are 160 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1030 cents. How many 7-cent stamps are there?



There are 270 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1590 cents. How many 3-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 1020 cents. How many 4-cent stamps are there?



There are 230 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 930 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 160 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 740 cents. How many 4-cent stamps are there?



There are 150 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 610 cents. How many 3-cent stamps are there?



오늘 8원짜리 7원짜리 우표 총 150 장을 사고, 1130 원을 지불 했을때, 몇개의 8원짜리 우표를 샀는가?



There are 280 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 1250 cents. How many 4-cent stamps are there?



There are 180 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1160 cents. How many 7-cent stamps are there?

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