What is the code for 'MOUSE' if M=13, O=15, U=21, S=19, E=5?

C. 1319215

If 'APPLE' is coded as '12345' and 'LEMON' is coded as '67890', what is the code for 'MELON'?

C. 67806

In a mixed letter coding system, if 'CAT' is coded as '312' and 'DOG' is coded as '415', what is the code for 'C' in the word 'CAT'?

A. 3

If A=1, B=2, C=3, and so on, what is the code for the word 'CAT'?

B. 312

If the word 'CAT' is coded as 3120, what is the code for the word 'DOG'?

A. 4157