833  Stamp
How many stamps? 2

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There are 240 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 1220 cents. How many 6-cent stamps are there?



There are 170 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1420 cents. How many 8-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1470 cents. How many 6-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 830 cents. How many 4-cent stamps are there?



There are 140 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 660 cents. How many 4-cent stamps are there?



There are 260 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1260 cents. How many 3-cent stamps are there?



There are 170 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1290 cents. How many 6-cent stamps are there?



오늘 5원짜리 7원짜리 우표 총 190 장을 사고, 1170 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 120 stamps which are 3-cent stamps and 6-cent stamps. Altogether they cost 510 cents. How many 3-cent stamps are there?



There are 220 stamps which are 8-cent stamps and 7-cent stamps. Altogether they cost 1640 cents. How many 8-cent stamps are there?



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833    130 110 80 120 90 ( 530 )   140 80 80 70 100 ( 470 )   [[ 1000 ]]