What number would be shown on the screen after the following statements of C are

What number would be shown on the screen after the following statements of C are executed?

char ch;
  int i;
  ch = 'G';
  i = ch-'A';
 printf("%d", i);

2) __________ is a graphical representation of a program.

3) What will be printed after execution of the following program code?

main()
 {
       printf("\\nab");
        printf("\\bsi");
        printf("\\rha");
  }

4) C was primarily developed as

5) The part of a machine level instruction, which tells the central processor what has to be done, is: