335  Stamp
How many stamps? 2

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There are 170 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1040 cents. How many 4-cent stamps are there?



There are 130 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 440 cents. How many 3-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1450 cents. How many 4-cent stamps are there?



There are 140 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 840 cents. How many 7-cent stamps are there?



There are 120 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 770 cents. How many 6-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1140 cents. How many 3-cent stamps are there?



There are 160 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 720 cents. How many 6-cent stamps are there?



오늘 5원짜리 6원짜리 우표 총 260 장을 사고, 1410 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



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



There are 240 stamps which are 4-cent stamps and 8-cent stamps. Altogether they cost 1440 cents. How many 4-cent stamps are there?



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335    80 80 70 70 70 ( 370 )   100 80 150 70 120 ( 520 )   [[ 890 ]]