159  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 1260 cents. How many 6-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 9-cent stamps. Altogether they cost 1490 cents. How many 8-cent stamps are there?



There are 140 stamps which are 3-cent stamps and 9-cent stamps. Altogether they cost 840 cents. How many 3-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 210 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1110 cents. How many 7-cent stamps are there?

There are 210 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1290 cents. How many 5-cent stamps are there?



There are 190 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1380 cents. How many 6-cent stamps are there?



오늘 4원짜리 8원짜리 우표 총 210 장을 사고, 1320 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?



There are 140 stamps which are 5-cent stamps and 3-cent stamps. Altogether they cost 580 cents. How many 5-cent stamps are there?



There are 170 stamps which are 3-cent stamps and 8-cent stamps. Altogether they cost 960 cents. How many 3-cent stamps are there?

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159    150 130 70 80 120 ( 550 )   150 110 90 80 80 ( 510 )   [[ 1060 ]]