If x times are taken, 3x white pieces and 4x black pieces are taken out. Because the white chess has just been taken out, there are 3x white chess pieces. First calculate the number of black chess pieces by 3x×2, and at the same time take out 4x black chess pieces, leaving 16 pieces. According to the same number of black chess pieces, the equation is listed, the number of times to take out is solved, and then the number of sunspots is calculated.

answer

Solution: Take X times and take out 3 white chess and 4 black chess. Because the white chess is just taken out, there are 3x white chess. According to the meaning of the question, the following equation can be obtained:

3x×2=4x+ 16，

6x-4x= 16

? 2x= 16

? x=8

Sunspots:

8×4+ 16

=32+ 16

=48 (pieces)

Bai Zi: 48÷2=24 (pieces)

A: There are 48 sunspots and 24 albinos.

So the answer is:

48 pieces; 24 pieces

comment

This problem is difficult, and the key to solve it is how many times to get it first, and then the number of black chess pieces. If you take x times, you take out 3x white pieces and 4x black pieces, so there are 3x white pieces. First, the number of black chess pieces is obtained by 3x×2, and at the same time, after taking out 4x black chess pieces, there are still 16 pieces left. According to the fact that the number of black chess pieces remains unchanged, the equation is listed.