Board has been riding on the roller as shown in the figure below.
When roller moves 10 cm, how long does the upper board move?
When roller moves 10 cm, how long does the upper board move?
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.