Problem of the Day

Friday, May 22, 2026

Problem:

Tickets for a bus are sold for a price based on the following system.

• A standard full price ticket for a bus ride is $2.00.
• Tickets for students or seniors are discounted 20%.
• Tickets purchased on a weekend receive a single discount of $1.00 on the entire purchase.
• Multiple tickets may be purchased at a time.

Consider the method below, intended to identity the total purchase price of a quantity of tickets.

/**
 * Calculates bus ticket prices
 * @param ticketQuantity the number of tickets being bought
 * @param student true if ticket is for a student (20% discount)
 * @param senior true if ticket is for a senior (20% discount)
 * @param weekend true if ticket(s) purchased on a weekend ($1.00 off total purchase price)
 */
public static double getTotalPrice(int ticketQuantity, boolean student, boolean senior, boolean weekend)
{
    final double FULL_PRICE_TICKET = 2.00;

    /* missing code */

    return purchasePrice;   
}

Which of the following can be used to replace /* missing code */ so that the method works as intended?

1. 
   

   if (student || senior)
       FULL_PRICE_TICKET *= 0.80;
   double purchasePrice = ticketQuantity * FULL_PRICE_TICKET;
   if (weekend)
       purchasePrice -= 1.00;

2. 
   

   double purchasePrice = ticketQuantity * FULL_PRICE_TICKET;
   if (student || senior)
       purchasePrice *= 0.80;
   if (weekend)
       purchasePrice -= 1.00 * ticketQuantity;

3. 
   

   double purchasePrice = ticketQuantity * FULL_PRICE_TICKET;
   if (student && weekend || senior && weekend)
       purchasePrice *= 0.80 - 1.00;

4. 
   

   double purchasePrice = ticketQuantity * FULL_PRICE_TICKET;
   if (student || senior)
       purchasePrice *= 0.80;
   if (weekend)
           purchasePrice -= 1.00;

Show solution: