If the word 'HELLO' is coded as '851212', what would be the code for 'WORLD'?

C. 231218

In a coding system, 'HELLO' is written as 'IFMMP'. What is the code for 'WORLD'?

A. XPSME

If in a certain code, 'CAT' is coded as 'DBU', how is 'DOG' coded in that code?

A. EPH

In a certain code, 'CAT' is coded as '3120'. How is 'DOG' coded if 'D' is 4, 'O' is 15, and 'G' is 7?

A. 4157

If 'BAT' is coded as 'DWR', what is the code for 'CAT'?

B. DVR