417  Stamp
How many stamps? 2

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There are 160 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 920 cents. How many 4-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1550 cents. How many 8-cent stamps are there?



There are 190 stamps which are 7-cent stamps and 8-cent stamps. Altogether they cost 1410 cents. How many 7-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 9-cent stamps. Altogether they cost 1600 cents. How many 7-cent stamps are there?



There are 200 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 920 cents. How many 7-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 860 cents. How many 3-cent stamps are there?



There are 190 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 730 cents. How many 3-cent stamps are there?



오늘 6원짜리 4원짜리 우표 총 220 장을 사고, 1100 원을 지불 했을때, 몇개의 6원짜리 우표를 샀는가?



There are 230 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1130 cents. How many 3-cent stamps are there?



There are 210 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 780 cents. How many 4-cent stamps are there?



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417    90 70 110 100 80 ( 450 )   100 110 110 120 150 ( 590 )   [[ 1040 ]]