2*27=54 people

98-54=44 people

6-2=4 people

Checkers is: 44÷4= 1 1 (deputy)

Chess has: 27- 1 1= 16 (deputy)

Question 2): 20 * (1-1/2) =10 meter.

10 *( 1- 1/2)= 5m。