Mathematical Operations Questions

If, 4x3=14; 5x4=18; 6x5=22; Then find the value of 7x6=?

If 3 # 4 % 8 = 6 and 9 % 4 # 3 = 12, then 12 % 6 # 24 = ?

If 19 (36) 13 and 37 (81) 28, then what is the value of 'A' in 43 (A) 38?

If (2)#* 4 = 2 and (4)#* 4 = 16, then what is the value of A in (6)#* A = 18?

If (3)2 @ 1 * 7 = 98 and (4)2 @ 2 * 16 = 178, then (5)2 @ 3 * 9 = ?

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?
24 x 6 - 8 + 2 = ?

Select the number which can be placed at the place of ? in the following question

In this question, some equations are solved on the basis of a certain system. On the same basis find out the correct answer from amongst the four alternatives for the unsolved equation.

15 x 26 = 6512

29 x 36 = 6923,

46 x 54 = ?