Consequential marking

[SDPHD]

Just a quick question about consequential marking.

Lets just say if theres a question with three or four parts, and to do the majority of the parts, you need to carry on the answer from the first part.

If you don't know the first part or can't figure out how to do it etc, but know how to do the rest, can you just make up a value (for the first part) and use it in the other parts?

Assuming you get the latter parts correct using your made up value for the first part, will you get marks for it?

Hopefully what I'm asking makes sense.

Thanks.

[cltf]

you lose the first marks, but the rest is consequential, so you could actually BS a 6 mark question.