Computer Science · May / June 2022 · Paper 11 · Question 5
0478
As printed in the paper
The question as text
An image is stored on a computer. The image is 16‑bit colour and is 100 pixels high and 150 pixels wide. Calculate the file size of the image in bytes. Show all your working. Answer bytes [3]
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
Two marks for two correct stages of working, one mark for correct final answer
100 × 150
15 000 × 16 // 15 000 × 2
240 000 / 8
30 000 bytes
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