Coding and Decoding Questions

If 40@8 = 50, 30@3 = 100 and 10@2 = 50, then find the value of 20@5 = ?

If 18!10 = 4, 10!4 = 3 and 4!8 = -2, then find the value of 16!18 = ?

If 20&60 = 8, 40&80 = 12 and 10&20 = 3, then find the value of 20&50 = ?

Select the correct set of symbols which will fit in the given equation?

5 0 3 5 = 20

If the mathematical operator '/' means 'x', '+' means '-', 'x' means '+' and '-' means '/', then

24 + 48 - 12 x 4 / 2 = ?

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

14 + 18 x 40 - 10 ÷ 20 = 66

Which of the following terms follows the trend of the given list?

ABCABcaBC, ABCAbcABC, ABCabCABC, ABcaBCABC, AbcABCABC, ______________

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

32 ÷ 16 - 5 x 8 + 2 = 13