Coding and Decoding Questions

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?

14 + 18 x 40 - 10 ÷ 20 = 66

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

32 ÷ 16 - 5 x 8 + 2 = 13

If 7*7 = 140, 6*1 = 70 and 3*5 = 80, then find the value of 4*4 = ?

If S means '+', L means 'x', U means '/' and K means '-', then the value of

21 S 1 U 7 L 15 U 6 L 14 K 55

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

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

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