319  Stamp
How many stamps? 2

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There are 200 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 920 cents. How many 4-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?



There are 200 stamps which are 5-cent stamps and 8-cent stamps. Altogether they cost 1390 cents. How many 5-cent stamps are there?



There are 190 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1270 cents. How many 5-cent stamps are there?



There are 260 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1740 cents. How many 5-cent stamps are there?



There are 250 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1230 cents. How many 3-cent stamps are there?



There are 220 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 980 cents. How many 4-cent stamps are there?



오늘 5원짜리 3원짜리 우표 총 200 장을 사고, 760 원을 지불 했을때, 몇개의 5원짜리 우표를 샀는가?



There are 210 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1070 cents. How many 7-cent stamps are there?



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?



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319    80 150 70 110 150 ( 560 )   130 120 80 110 100 ( 540 )   [[ 1100 ]]