Vòng 1 - Vòng sơ loại

Question 5)  4

Question 6) 0.15%

Question 7)12.5%

Question 8) 36

Question 9)  44.

Question 10)value of P is 0.5

Question 11) 134.

Question 12) 36

Question 13) 2.8 x 10^-8

Question 14) 400.

Question 15)  7.

Question 16) 3570.

Question 17) 22.

Question 18) 2

Quesion 19) 4233

Question 20 ) 13.79%

Question 21 ) Elias

Question 22)  2

Question 23) 364

Question 24 ) 84 pounds

Question 26 ) 27

Question 27) 50%