What do you suspect will be used to add another choice to the program?
Another IF
structure will be added.
Remember the waiter trying to discover your choice of beverage?
As many choices as needed can be accomodated by adding IF
s.
In a program, these IF
s will be nested.
Here is one way the new selection could be added to the
airfare program:
PRINT "Enter full fare" INPUT FARE PRINT "Enter age" INPUT AGE ' 'Calculate discount based on age IF AGE < 12 THEN LET RATE = 0.0 ELSE IF AGE < 24 THEN LET RATE = 0.70 ELSE IF __________________ THEN LET RATE = 1.0 ELSE LET RATE = 0.75 END IF END IF END IF 'Calculate fare PRINT "Your fare is:", FARE * RATE END
The program is starting to look a little ugly, but you can probably answer this question if you focus on just the new nested IF. Fill in the blank so that seniors 65 and older get the 0.75 rate.