score:2
The page http://www.mae.ro/en/node/2040 lists among people who do not need a Romanian visa:
The holders of visas [...] issued by Bulgaria [...].
So having a Bulgarian visa will exempt you from needing a separate Romanian visa as long as you still have at least one entry and sufficient duration-of-stay left on the Bulgarian visa:
Attention! The number of entries as well as the right of stay established as per such visas must not have been exhausted. The right of stay on the territory of Romania shall not exceed the right of stay granted as per such visas/residence permits.
There is more information, including a reference to relevant EU legislation, at http://www.mae.ro/en/node/30330.
Upvote:-1
You can't enter in Romania if you don't have a Romanian visa, even if you have a Bulgarian one that doesn't help you. On the official site http://www.mae.ro/node/1469 you can find all the answers.