Question
Rahul bought 25 notebooks for Rs. 200 and he sold them
in such a manner so that selling price of 10 notebooks is Rs. 100. Find the value of 5(P + 5) if the profit percent earned by Rahul is 'P%'.Solution
ATQ, Cost price of 1 notebook = 200/25 = Rs. 8 Selling price of 1 notebook = 100/10 = Rs. 10 Profit earned = 10 − 8 = Rs. 2 So, 'P' = (2/8) × 100 = 25% P = 25 Required value = 5×(25+5) = 5×30 = 150
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How is data hiding primarily achieved in OOP?
Which type of polymorphism is achieved through method overloading (where multiple methods have the same name but different parameters)?
The bundling of data (attributes) and methods (functions) that operate on the data into a single unit (class), and restricting direct access to some of ...
In Python, if you want to call the constructor of a parent class explicitly, which method do you use?
Which special method is automatically called when an object of a class is created, typically used for initializing the object's state?
What is the main purpose of an interface in OOP?
The ability of an object to take on many forms, or the ability of a single interface to represent different underlying forms, is known as:
What is a "method" in the context of OOP?
Which access modifier restricts access to a class member only within the class itself and its derived classes?
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