516  Stamp
How many stamps? 2

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There are 190 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1310 cents. How many 5-cent stamps are there?



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



There are 160 stamps which are 6-cent stamps and 5-cent stamps. Altogether they cost 880 cents. How many 6-cent stamps are there?



There are 150 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 780 cents. How many 6-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 5-cent stamps and 7-cent stamps. Altogether they cost 1120 cents. How many 5-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1230 cents. How many 6-cent stamps are there?



오늘 3원짜리 7원짜리 우표 총 200 장을 사고, 1080 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 170 stamps which are 5-cent stamps and 4-cent stamps. Altogether they cost 770 cents. How many 5-cent stamps are there?



There are 260 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 1560 cents. How many 3-cent stamps are there?



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516    100 120 80 90 100 ( 490 )   140 100 80 90 130 ( 540 )   [[ 1030 ]]