185  Stamp
How many stamps? 2

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There are 200 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 940 cents. How many 6-cent stamps are there?



There are 220 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1430 cents. How many 5-cent stamps are there?



There are 270 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1360 cents. How many 6-cent stamps are there?



There are 250 stamps which are 5-cent stamps and 7-cent stamps. Altogether they cost 1470 cents. How many 5-cent stamps are there?



There are 140 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 770 cents. How many 6-cent stamps are there?

There are 220 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1650 cents. How many 6-cent stamps are there?



There are 160 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1230 cents. How many 8-cent stamps are there?



오늘 7원짜리 4원짜리 우표 총 270 장을 사고, 1530 원을 지불 했을때, 몇개의 7원짜리 우표를 샀는가?



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



There are 140 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 780 cents. How many 6-cent stamps are there?

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