q=16/32=1/2 b4 = 32 * (1/2)^3 = 32 * 1/8 = 4 b5 = 32 * (1/2)^4= 32* 1/16 =2 b7 = 32 * (1/2)^6 = 32 * 1/64 = 1/2 =0,5 b4+b5+b7 = 4+2+0,5 = 6,5