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There are 150 stamps which are 5-cent stamps and 6-cent stamps. Altogether they cost 800 cents. How many 5-cent stamps are there?
There are 220 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1330 cents. How many 4-cent stamps are there?
There are 230 stamps which are 3-cent stamps and 5-cent stamps. Altogether they cost 950 cents. How many 3-cent stamps are there?
There are 190 stamps which are 4-cent stamps and 5-cent stamps. Altogether they cost 860 cents. How many 4-cent stamps are there?
There are 260 stamps which are 5-cent stamps and 9-cent stamps. Altogether they cost 1780 cents. How many 5-cent stamps are there?
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There are 200 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 1200 cents. How many 7-cent stamps are there?
There are 160 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 680 cents. How many 3-cent stamps are there?
¿À´Ã 7¿øÂ¥¸® 5¿øÂ¥¸® ¿ìÇ¥ ÃÑ 260 ÀåÀ» »ç°í, 1600 ¿øÀ» ÁöºÒ ÇßÀ»¶§, ¸î°³ÀÇ 7¿øÂ¥¸® ¿ìÇ¥¸¦ »ò´Â°¡?
There are 150 stamps which are 7-cent stamps and 6-cent stamps. Altogether they cost 1000 cents. How many 7-cent stamps are there?
There are 210 stamps which are 3-cent stamps and 4-cent stamps. Altogether they cost 710 cents. How many 3-cent stamps are there?
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