I probably would have suggested that they get all the other startups in their batch + a few friends each + more than a few of the Reddits' friends. 20 + 40 + 3

I probably would have suggested that they get all the other startups in their batch + a few friends each + more than a few of the Reddits' friends. 20 + 40 + 30 = 90, which probably would have been enough.