823  Stamp
How many stamps? 2

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There are 180 stamps which are 7-cent stamps and 3-cent stamps. Altogether they cost 1060 cents. How many 7-cent stamps are there?



There are 200 stamps which are 4-cent stamps and 6-cent stamps. Altogether they cost 980 cents. How many 4-cent stamps are there?



There are 250 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 1110 cents. How many 6-cent stamps are there?



There are 220 stamps which are 6-cent stamps and 9-cent stamps. Altogether they cost 1620 cents. How many 6-cent stamps are there?



There are 240 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 840 cents. How many 4-cent stamps are there?



There are 220 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 760 cents. How many 3-cent stamps are there?



There are 190 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1060 cents. How many 4-cent stamps are there?



¿À´Ã 7¿øÂ¥¸® 9¿øÂ¥¸® ¿ìÇ¥ ÃÑ 240 ÀåÀ» »ç°í, 1900 ¿øÀ» ÁöºÒ ÇßÀ»¶§, ¸î°³ÀÇ 7¿øÂ¥¸® ¿ìÇ¥¸¦ »ò´Â°¡?



There are 180 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 640 cents. How many 3-cent stamps are there?



There are 180 stamps which are 8-cent stamps and 3-cent stamps. Altogether they cost 1040 cents. How many 8-cent stamps are there?



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823    130 110 120 120 120 ( 600 )   120 130 130 130 100 ( 610 )   [[ 1210 ]]