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diff --git a/tests/1/questions.tex b/tests/1/questions.tex deleted file mode 100644 index 62e1106..0000000 --- a/tests/1/questions.tex +++ /dev/null @@ -1,46 +0,0 @@ -\begin{questions} - - \question Lucy records using her camera. The camera saves the - audio and video parts of the recording seperately. Lucy transfers - recording to her computer. The audio file has a size of 12.8 kB. - Audio is recorded at a sample rate of 320 kB per second. The audio - resolution is 32 bits. - - \begin{parts} - - \part[5] In minutes, how many seconds was the recording. - \vspace{\stretch{1}} - - \part[5] A video file consists of many still frames. Each - frame is a normal image. The size of a video file can - therefore be expressed as: - - \begin{align*} - \mbox{Video file size} = \mbox{Number of frames} \times - \mbox{Size of each frame} - \end{align*} - - If each frame is 1920 pixels wide and 1080 pixels high in - resolution, and the bit depth of 24 bits, what is the file - size of the video file. - \vspace{\stretch{1}} - - \pagebreak - - \part[1] Lucy combines the audio and video to form a file. She - then runs a lossy compression algorithm on the resulting file. - What is lossy compression? - \vspace{\stretch{1}} - - \part[3] The file size after compression is reduced by 20\%. - What is the final file size? - \vspace{\stretch{1}} - - \part[1] State an assumption made for part (d). - \vspace{\stretch{1}} - - \end{parts} - \droptotalpoints - -\end{questions} - |