In a certain code ‘BUILD’ is written as ‘5#31@’ and ‘LIKES’ is written as ‘13©⋆8’. How is ‘SKID’ written in that code?

Assigning codes to respective letters:

B

U

I

L

D

5

#

3

1

@

L

I

K

E

S

1

3

©

?

8

Clearly, code corresponding to S is 8, K is ©, I is 3 and D is @.

Hence, the code for SKID is 8©3@.