Diffrent oven tempretures?

[inspireddance]

This is going to sound very dumb, but I am new to this domestic life. Trying to plan dinner for DP when he comes back from a work trip tonight but I have two things for the oven, one that says cook on 200 and one that says cook on 180. Would it be ok to cook both on 190 and leave the 200 food in for longer?

How are you meant to do this?

I would cook on 200 and put the 200 item in the top of the oven and the 180 in the bottom. and reduce the cooking time a little bit.

Thanks!