Coding and Decoding Questions

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

18 - 2 ÷ 20 + 5 x 16 = 69

If + means x, - means /, x means + and / means -; compute the value of the expression

36 - 4 + 7 x 8

If 20 - 10 means 200, 8 / 4 means 12, 6x2 means 4, then

100 - 10 x 1000/ 1000 + 100 x 10 = ?

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

16 ÷ 4 - 50 x 4 + 18 = 26

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

16 x 8 - 4 ÷ 9 + 14 = 37

If 70!10 = -7, 70!5 = -14 and 40!4 = -10, then find the value of 20!2 = ?

If 16#2 = 16, 12#6 = 36 and 6#1 = 3, then find the value of 4#4 = ?

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

6 x 18 + 40 ÷ 30 - 10 = 20