Answer:

' Mystery Program
'
LET ENDVALUE = 5
LET COUNT = 1
DO WHILE COUNT <= ENDVALUE
  PRINT "Hello"  
  LET COUNT = COUNT + 1
LOOP
'
END

will print out:

Hello
Hello
Hello
Hello
Hello

There are 5 "Hellos", corresponding to the value 5 in ENDVALUE.

Changing the Ending value

An INPUT statement can read a number from the user. It could put the number into ENDVALUE. If this is done, the user can say how many times the loop should execute.

Let us change the program so that the user enters a number, and then that many "Hellos" are PRINTed. Here is how the program gets a number from the user:

PRINT "How many times do you want to print Hello"
INPUT ENDVALUE

Here is the program (with a gap or two):

' Almost complete program
'



LET COUNT = 1
DO WHILE COUNT <= ENDVALUE


  PRINT "Hello"  
  LET COUNT = COUNT + 1

LOOP

END

QUESTION 5:

Mentally insert the two statements into the above program so that the user determines how many times the loop executes.