If × stands for –, ÷ stands for +, + stands for ÷ and – stands for ×, then arrange the following in increasing order: 1. 15 – 5 ÷ 5 × 20 + 10 2. 8 ÷ 10 – 3 + 5 × 6 3. 6 × 2 ÷ 3 + 12 – 3 4. 3 ÷ 7 – 5 × 10 + 3 Choose the correct answer from the code given below: