Coding and Decoding Questions

If 70$7 = -10, 50$5 = -10 and 40$8 = -5, then find the value of 10$2 = ?

 In a certain code language, “POLIS” is written as “SROLV”. How is “MRUGS” written in that code language?

If "A" denotes "added to", "B" denotes "divided by", "C" denotes "multiplied by" and "D" denotes "subtracted from", then

76 B 19 C 7 A 3 D 25=?

If mathematical operators '-' and '/' are interchanged, then the value of 15 x 4 ÷ 15 - 11 x 33 ÷ 98 is

In a certain code language, “LINKS” is written as “93210” and “CROMA” is written as “84576”. How is “ROCKS” written in that code language?

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?

50 + 3 ÷ 125 x 5 - 25 = ?

In a certain code, 134 is AGE and 92706 is INERT. What is 016923?

If 'x' means 'addition', '­' means 'division', '/' means 'subtraction' and '+' means 'multiplication', then which of the equation is correct