Coding and Decoding Questions

In a certain code language, '-' represents 'x', '÷' represents '+', '+' represents '÷' and 'x' represents '-'. Find out the answer to the following question.

7 x 10 ÷ 30 - 2 + 6 = ?

If "S" denotes "multiplied by", "V" denotes "subtracted from", "M" denotes "added to" and "L" denotes "divided by", then 11 V 9 M 88 L 11 S 9 = ?

If "A" denotes "added to", "C" denotes "divided by", "D" denotes "multiplied by" and "B" denotes "subtracted from", then 72 C 9 D 2 B 6 A 10 = ?

In a certain code, RIPPLE is written as 613382, PREACH is coded as 362457. How is PILLER written in that code?

If P denotes '÷', Q denotes 'x', R denotes '+' and S denotes '­', then 18Q12P4R5S6 = ?

In a certain code language, if SIGN is coded as 8367 and DIRECT is coded as 134259, then SIREN will be coded as

In a certain code language, “STOINS” is written as “ROHPST”. How is “MARCUS” written in that code language?

If "S" denotes "multiplied by", "V" denotes "subtracted from", "M" denotes "added to" and "L" denotes "divided by", then 36 L 9 S 8 V 7 M 5 = ?