A) ( 1111101₂ + AF₁₆ ) / 36₈
1111101₂ = 1 × 2⁰ + 0 × 2¹ + 1 × 2² + 1 × 2³ + 1 × 2⁴ + 1 × 2⁵ + 1 × 2⁶ = 1+4+8+16+32+64 = 125₁₀
AF₁₆ = 15 × 16⁰ + 10 × 16¹ = 15+160 = 175₁₀
125+175=300
36₈ = 6 × 8⁰ + 3 × 8¹ = 6+24 = 30₁₀
300 / 30 = 10
б) 125₈ + 101₂ · 2A₁₆ - 141₈
125₈ = 5 × 8⁰ + 2 × 8¹ +1 × 8² = 5+16+64 = 85₁₀
101₂ = 1 × 2⁰ + 0 × 2¹ + 1 × 2² = 1+4 = 5₁₀
2A₁₆ = 10 × 16⁰ + 2 × 16¹ = 10+32 = 42₁₀
5 · 42 = 210
85 + 210 = 295
141₈ = 1 × 8⁰ + 4 × 8¹ + 1 × 8² = 1+32+64 = 97
295 - 97 = 198