A web page that contains $3$ images and $2$ videos is downloaded via non$-$persistent HTTP with no parallel connections. Assume that the number of TCP segments to download the web page, each image, and each video is $3,15,$ and $48,$ respectively. Suppose that a TCP connection starts out with congestion window of $1$ segment and slow start threshold of $16$ segments, and there is no loss or reordering of TCP segments in the network. Also, it takes $1$ RTT to open a TCP connection and $1$ RTT to close a TCP connection. How many RTT would it take to download the whole web page, including all images and videos from the server?