758  Leg-Stamp
닭다리 개다리 2

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There are 190 heads of Chickens and Dogs together. Altogether there are 540 legs. How many chickens are there?



There are 250 heads of Chickens and Dogs together. Altogether there are 740 legs. How many chickens are there?



우리 안에 총 120 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 320 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 70 heads of Chickens and Dogs together. Altogether there are 200 legs. How many chickens are there?



There are 200 heads of Chickens and Dogs together. Altogether there are 560 legs. How many chickens are there?

There are 180 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1070 cents. How many 4-cent stamps are there?



There are 120 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 620 cents. How many 6-cent stamps are there?



오늘 4원짜리 9원짜리 우표 총 220장을 사고, 1330 원을 지불 했을때, 몇개의 4원짜리 우표를 샀는가?



There are 180 stamps which are 6-cent stamps and 4-cent stamps. Altogether they cost 980 cents. How many 6-cent stamps are there?



There are 160 stamps which are 7-cent stamps and 5-cent stamps. Altogether they cost 960 cents. How many 7-cent stamps are there?

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758    110 130 130 40 120 ( 530 )   110 70 70 130 80 ( 460 )   [[ 990 ]]