If "+" means "multiplied by", "-" means "added to", "×" means "divided by" and "÷" means "subtracted", then which of the following equation is correct ?
1
12 - 12 ÷ 6 × 6 + 3 = 21
2
30 ÷ 8 × 4 - 6 + 1 = 32
3
6 + 7 × 3 - 4 ÷ 6 = 26
4
8 + 5 - 20 × 4 ÷ 6 = 41