Working with colours
Answers are for parents and teachers.
1
How many bytes is an 800×600 pixel picture in RGB (24-bit) mode?
1440000
2
How many bytes is the same picture in Grayscale (8-bit)?
480000
3
What colour is RGB (128, 128, 128) and what is its hexadecimal form?
A medium grey, #808080
4
Into which colour square does a colour taken with the Eyedropper go by default (foreground or background)?
The foreground colour.
5
Why can a colour that looks bright on a monitor look duller in print?
The range of colours the CMYK inks can make is narrower than a screen's RGB; some saturated colours cannot be made with ink.