যদি 20 -10 এর অর্থ 200, 8 ÷ 4 এর অর্থ 12, 6 × 2 এর অর্থ 4, তবে 100 - 10 × 1000 ÷ 1000 + 100 × 10 =? A. 20 B. 10 C. 0 D. 1

From the examples: 20 − 10 = 200 means − is ×; 8 ÷ 4 = 12 means ÷ is +; 6 × 2 = 4 means × is −; 10 + 2 = 5 means + is ÷. So 100 − 10 × 1000 ÷ 1000 + 100 × 10 becomes 100 × 10 − 1000 + 1000 ÷ 100 − 10 = 1000 − 1000 + 10 − 10 = 0.