Multiplying numbers generated by spinners. Solution Each number on the right has a 1/4 chance of being picked. Theright side has a 1/3 chance. I did some quick math to find the numbers 1*8=8 1*9=9 1*10=10 2*8=16 2*9=18 2*10=20 3*8=24 3*9=27 3*10=30 4*8=32 4*9=36 4*10=40 Add up all the chances for even and devide by total number(12) 10/12=83.3% You have an 83.3 % chance of spinning an even number.