Answer:

Nested IFs can be used.

Airfare Program

airfare flow chart

 

 

Here is the complete 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
    LET RATE = 1.0
  END IF

END IF

'Calculate fare
PRINT "Your fare is:", FARE * RATE
END

QUESTION 3:

A passenger is 21 years old and wants a round-trip ticket to Rome. The full fare is $1000. What does this passenger pay?