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 'APPLE' is coded as '12345', what is the code for 'LEMON'?

A. 54321

In a certain code, 'DOG' is coded as '415'. How is 'CAT' coded in the same language?

A. 312

If 'APPLE' is coded as '12345', what is the code for 'LEMON'?

A. 54321

In a coding system, 'BOOK' is represented as '2451'. What is the code for 'PEN'?

A. 1614