There are two articles A and B in a certain store and if you buy four pieces of A and three pieces of B, it is 1000 yen.
Moreover, the price of three A is 70 yen higher than the price of two B.
Find a price of one piece of A.
This site introduces problems of Sansue, i.e. mathematics which Japanese schoolchildren learn at elementary school. Problems are selected mainly from entrance examinations of famous junior high schools for 6th grade Japanese schoolchildren (12 years old) to take. We found Sansue is not only one of subjects at school but one of Japanese culture. Please enjoy Japanese Sansue culture.