Coding and Decoding Questions

If "A" means "subtraction", "B" means "division", "C" means "addition" and "D" means "multiplication", then

411 B 3 A 29 C 53 D 20 = ?

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

17 - 20 ÷ 25 x 6 + 10 = 12

If 18$2 = 10, 8$4 = 6 and 12$18 = 15, then find the value of 7$9 = ?

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

9 ÷ 3 - 30 x 7 + 6 = 15

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

3 + 4 - 25 ÷ 2 x 12 = 41

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

26 - 2 x 30 ÷ 6 + 16 = 20

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

14 + 8 ÷ 16 - 9 x 12 = 10

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

12 + 8 - 25 ÷ 10 x 18 = 14