Question Discussion & Solution

Ammeter is an instrument used to measure Current.

Similarly, Hygrometer is an instrument used to measure Humidity

Total number of people = 45

Position of A from the behind = 26^th

Position of A from the front = Total number of people – A’s position from the behind + 1

= 45 – 26 + 1

= 20^th

Let the three consecutive numbers be x, x + 1, x + 2

⇒ x + (x + 1) + (x + 2) = 345

⇒ 3x + 3 = 345

⇒ 3x = 345 – 3 = 342

\(\Rightarrow x = \frac{{342}}{3} = 114\)

So the three consecutive numbers are 114, 115 and 116. And the middle number is 115.

A constructor is a member function of a class that initializes objects of a class. In C++, Constructor is automatically called when an object (instance of a class) creates. It is a special member function of the class.

Syntax

class_name(parameter1, parameter2, ...)

{

    // constructor Definition

}

Default Constructor

It is the constructor that doesn’t take any argument. It has no parameters.

Parameterized Constructors

It is possible to pass arguments to constructors. Typically, these arguments help initialize an object when it is created. 

Copy Constructor

A copy constructor is a member function that initializes an object using another object of the same class.

Five friends: A, C, F, U and Z.

1) F is shorter than A who is shorter than Z.

F < A < Z

2) C is shorter than F but not as shorter as U.

This means U is shorter than C.

U < C < F

Combining 1) and 2), we get:

U < C < F < A < Z