How much information is contained in a 40 by 50 pixel monochrome picture?

Since the picture is monochrome, then 1 of its pixel carries 1 bit of information. The size of this picture is 40 by 50 pixels, that is, the picture is made up of 40 * 50 = 2000 pixels. Knowing that each pixel is 1 bit, we find the amount of information contained in the figure: 2000 * 1 bit = 2000 bits = 2000/8 bytes = 250 bytes.
Answer: 250 bytes.



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