Coding and Decoding Questions

If 19!3 = 32, 13!4 = 18 and 12!2 = 20, then find the value of 17!3 = ?

If 3!5 = 30, 6!1 = 12 and 5!8 = 80, then find the value of 2!2 = ?

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

12 - 16 x 25 ÷ 80 + 10 = 7

Answer the questions based on the below information.

If '+' is 'x', '-' is '+', 'x' is '/' and '/' is '-' then 6 + 7 x 3 - 8 / 20 = ?

If 7∆6 = 84, 1∆4 = 8 and 2∆3 = 12, then find the value of 8∆4 = ?

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

20 + 12 x 35 - 20 ÷ 10 = 31

 If 3@7 = 20, 8@1 = 18 and 6@5 = 22, then find the value of 4@4 = ?

If 2%1 = 30, 6%2 = 80 and 2%5 = 70, then find the value of 4%1 = ?