944  Leg-Stamp
닭다리 개다리 2

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There are 200 heads of Chickens and Dogs together. Altogether there are 540 legs. How many chickens are there?



There are 210 heads of Chickens and Dogs together. Altogether there are 660 legs. How many chickens are there?



우리 안에 총 90 마리의 닭과 개가 있다. 다리를 세어보니, 총합쳐서 260 다리가 있다. 몇마리의 닭이 우리 안에 있는가?



There are 90 heads of Chickens and Dogs together. Altogether there are 240 legs. How many chickens are there?



There are 150 heads of Chickens and Dogs together. Altogether there are 480 legs. How many chickens are there?

There are 190 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 1150 cents. How many 7-cent stamps are there?



There are 130 stamps which are 7-cent stamps and 4-cent stamps. Altogether they cost 760 cents. How many 7-cent stamps are there?



오늘 3원짜리 7원짜리 우표 총 210장을 사고, 1030 원을 지불 했을때, 몇개의 3원짜리 우표를 샀는가?



There are 210 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1330 cents. How many 6-cent stamps are there?



There are 210 stamps which are 6-cent stamps and 7-cent stamps. Altogether they cost 1350 cents. How many 6-cent stamps are there?

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944    130 90 90 60 60 ( 430 )   130 80 80 140 120 ( 550 )   [[ 980 ]]