Traditional Culture Encyclopedia - Photography and portraiture - There are 24 more people in the Go group in Wencheng Primary School than in the Chess group, and the number of people in the Chess group is two-thirds.

There are 24 more people in the Go group in Wencheng Primary School than in the Chess group, and the number of people in the Chess group is two-thirds.

Chess group: 24×( 1+50%)

=24× 1.5

=36 people

Total population: (24+36)÷( 1-20%)

=60÷80%

=75 people

Weiqi group: 75×20%= 15 people.