EXERCISE 1

Question 1

A) [5*2] % 3 + 25/5

=[10 % 3] + 25/5

=1 + 5

= 6#

2. a=5 b=6

! [ (a < 3) && (a == 3) || (b > 9) ]

! [ (5 < 3) && (5 == 3) || (6> 9) ]

! [ ( 0 ) && ( 0 ) || ( 0 ) ]

! [ ( 0 ) ( 0 ) ]

! ( 0 )

= 1#

Question 2

#include <iostream.h>

main( )

{

float allowance = 300.00,salary;

//input

cout << ”input salary = “;

cin >> salary;

salary = salary + allowance;

//output

cout << “salary is = “<< salary;

return 0;

}

Question 3

#include <iostream.h>

main()

{

//declare variable

float no_working_day,salary_per_day,monthly_salary;

//input1

cout << ” enter no working day = “;

cin >> no_working_day;

//input2

cout << “ enter salary per day = “;

cin >> salary_per_day;

//formula

monthly_salary = no_working_day + salary_per_day;

//output

cout >> “monthly salary = “<<monthly_salary;

return 0;

}

Question 4

#include <iostream.h>

main()

{

//variable declaration

float num1,num2,num3,num4,num5,total,average;

//input1

cout<<"num1= ";

cin>>num1;

//input2

cout<<"num2= ";

cin>>num2;

//input3

cout<<"num3= ";

cin>>num3;

//input4

cout<<"num4= ";

cin>>num4;

//input5

cout<<"num5= ";

cin>>num5;

//formula

total = num1 + num2 + num3 + num4 + num5/5;

//output

cout<<"average= "<<total;

return 0;

}

Question 5

#include <iostream.h>

main()

{

//variable declaration

int length,width,radius;

float areaR,areaT,areaC;

//input

cout<<"Enter the length= ";

cin>>length;

cout<<"Enter the width= ";

cin>>width;

cout<<"Enter the radius= ";

cin>>radius;

//formula

areaR = length * width;

areaT = 0.5 * length * width;

areaC = 3.142 * radius * radius;

//output

cout<<"The area of rectangle: "<<areaR;

cout<<"The area of triangle: "<<areaT;

cout<<"The area of circle: "<<areaC;

return 0;

}