What is the expalantion behind all this? Can you please tell me in detail?

#1

What is the expalantion behind all this? Can you please tell me in detail?

#2

Which question are you referring to?
Refer this discussion Quiz on programmming fundamentals 1 Some questions are explained

#3

the last one, regarding the range of all the data types?

#4

char takes 1 byte.
You can google it and check for all data types

#5

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