Coding and Decoding Questions

If 5Δ1 = 40, 9Δ9 = 0 and 7Δ1 = 60, then find the value of 4Δ9 = ?

In a certain code language "POUCH" is written as "53461", and "PRAYERS" is written as "578902⇑". How will "CHEES" be written in that code language?

If DIJOB means CHINA, then the last letter of the word got by decoding KBQBO is

If A denotes '+', B denotes '-', C denotes '/', D denotes 'x' then the value of the expression 9 D 48 C 6 B 16 A 3 is

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

7 ÷ 10 - 15 + 6 x 18 = ?

If DRIVER is coded as 5 and BELIEVED is coded as 7, then what is the code for EXAMINATION?

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

14 x 10 ÷ 5 - 20 + 4 = ?

If 75$26 = 4, 69$53 = 7 then what is the value of 82$46 = ?