Coding and Decoding Questions

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

ABCABcaBC, ABCAbcABC, ABCabCABC, ABcaBCABC, AbcABCABC, ______________

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

24 + 48 - 12 x 4 / 2 = ?

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

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

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

If MADRAS can be written as NBESBT, how can BOMBAY be written in that code ?

If 6@16 = 11, 2@14 = 8 and 8@8 = 8, then find the value of 10@18 = ?

If - means /, / means +, x means - and + means x, then determine the value of

35 - 7 x 14 / 28