Any good for what? What did you pay £240 for? Just the PC or PC and monitor? What specific GPU is it? 2GB R7 2** could be a couple of different cards. At most, depending on case and PSU, I'd say the system itself is worth £200. That's being generous. Its all old components but depending on what specific GPU you have, it's still capable of playing games at low settings, or less demanding games perfectly fine.

I bought the computer, keyboard, mouse, windows 10 and wireless adapter for £240
It just sas R7 200 Series

I bought it for general use social media and collage work

what games could it run?

XeDeclan wrote I bought the computer, keyboard, mouse, windows 10 and wireless adapter for £240

Hm, little over-priced then IMO, but it's not a terrible price. If it was £240 including the monitor, that'd be a fine price.

XeDeclan wrote It just sas R7 200 Series

That covers a variety of GPUs. It could be an R7 240, 250, 250X, 260, 260X, or 265. I'm pretty sure there are 2GB variants of them as well, so we can't narrow it down. Check in the Crimson app, that might tell you what specific GPU you have or how many shaders the card has. Otherwise, download GPU-Z. Again, GPU-Z might tell you the specific GPU, but it might not. GPU-Z will definitely tell you how many shaders the card has, and this can helps us determine which specific R7 200 series card you have.

1024 = 265
896 = 260x
768 = 260
640 = 250x
512 = 250
320 = 240

XeDeclan wrote I bought it for general use social media and collage work

It'll be fine for that.

XeDeclan wrote what games could it run?

Depends on the specific GPU.