Coding and Decoding Questions

If the code for MOTHER is JRQKBU then what is the code for PRINCIPAL?

In a certain code language, "ENERGETIC" is written as "ETICGENER". How is "CARTRIDGE" written in that code language?

If "A" means "plus", "B" means "divide", "C" means "multiply" and "D" means "minus", then 180 B 36 C 5 A 8 D 32 = ?

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 this question, some equations are solved on the basis of a certain system. On the same basis find out the correct answer from amongst the four alternatives for the unsolved equation.

462 = 551
398 = 487
856 = ?

In a certain code language, “TRAVEL” is written as “WVFYIQ”. How is “TABLET” 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?

15 - 5 + 25 ÷ 10 = ?

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

8 - 14 + 7 x 10 ÷ 9 = ?