I was supposed to meet Mini for movie last Friday. Due to a doctor’s appointment, I fell slightly late off schedule. When she called me, I told her that I would not be able to pick her up from the scheduled rendezvous point, which was thirty mins both from my place as well as the multiplex, since we would get late for the movie by around 15 minutes. Luckily, she was with a friend who suggested that I start towards the rendezvous point and then they would meet me midway so that we can save time. Considering traffic and everything, my average speed was close to 70 kmph and when I picked up Mini midway and immediately rushed for the movie, we were able to just catch the movie in time. What was the speed with which Mini’s friend was driving?