988  Stamp
How many stamps? 2

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There are 210 stamps which are 4-cent stamps and 7-cent stamps. Altogether they cost 1020 cents. How many 4-cent stamps are there?



There are 230 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 930 cents. How many 5-cent stamps are there?



There are 200 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1060 cents. How many 6-cent stamps are there?



There are 210 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 930 cents. How many 5-cent stamps are there?



There are 180 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 980 cents. How many 6-cent stamps are there?



There are 260 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 1420 cents. How many 5-cent stamps are there?



There are 230 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1390 cents. How many 5-cent stamps are there?



오늘 4원짜리 9원짜리 우표 총 230 장을 사고, 1570 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?



There are 210 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1330 cents. How many 5-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 860 cents. How many 4-cent stamps are there?



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988    150 120 130 90 130 ( 620 )   140 150 100 140 90 ( 620 )   [[ 1240 ]]