The video tutorial explains how to calculate discounts in a shopping cart scenario using conditional statements. It covers the use of 'if' statements to apply a discount based on the total purchase amount and introduces logical operators like 'OR' and 'AND' to handle additional conditions, such as purchasing sale items. The tutorial demonstrates how these conditions affect the final payable amount and highlights the importance of understanding logical operators in decision-making processes.

Explain the use of the OR keyword in the context of the discount calculation.

What happens if both conditions in an AND statement are not met?