Wekly Reflection 7

1. Fill in the blank with appropriate data type for the 

following variables declaration syntax : 

a) __________Number 1=1 

b) __________Number 3=3.0 

c) __________Text 1=”1 have a car” 

d) __________Huruf = “B” 

e) __________AccountNo =”6666666443” 

ANSWER  

a) int Number 1=1 

b) float Number 3=3.0 

c) string Text 1=”1 have a car” 

d) char Huruf = “B” 

e) int AccountNo =”6666666443”

2. You are given PTPTN loan with the amount of RM1600.Calculate the amount that you should pay after PTPTN discount based on CGPA.You must use IF…ELSE Statement: 

CGPA Diskaun 

4.00 100% 

3.99 – 3.00 80% 

2.99 – 2.00 40% 

0 – 1.99 0% 

Output: 

Jumlah pinjaman: RM16000.00 

CGPA yang diperolehi:3.00 

Diskaun:RM 12800 

Jumlah oinjaman yang perlu dibayar selepas diskaun: RM3200 

ANSWER

#include <iostrean.h>

main()

{

      //declare variable

      float (cgpa,discount,jumlah_pinjaman,bayaran_pinjaman;

      cout<<"jumlah pinjaman=";

      cin>>jumlah_pinjaman;

      cout<<"cgpa yg diperolehi=";

      cin>>cgpa;

     

      if (cgpa>=3.99&&cgpa<=3.00);

      diskaun = jumlah_pinjaman * 80/100;

      bayaran_pinjaman = jumlah_pinjaman - diskaun;

      cout<<"\n Diskaun ="<<diskaun<<endl;

      cout<<"jumlah pinjaman yg perlu dibayar selepas="<<bayaran_pinjaman<<endl;

3. You are required to do a program that will execute the multiply or divide operation.The operation is based on the user’s choice.You must use SWITCH-CASE STATEMENT:

Output.

____________________________________________ 

MENU PILIHAN 

____________________________________________ 

1.Pendaraban 

2.Pembahagian 

__________________________________________ 

Masukkan nombor pertama:4 

Masukkan nombor kedua:8 

Masukkan pilihan anda:1 

Hasil darab 4 8 ialah 32 

ANSWER

#include <iostream.h>

main()

{

      //Declare variable

      int num1,num2,selection,total_multiply,total_divided;

     

      cout<<"masukkan nombor 1=";

      cin>>num1;

      cout<<"masukkan nombor kedua=";

      cin>>num2;

      cout<<"masukkan pilihan anda=";

      cin>>selection;

      switch(selection)

{

case 1:(selection=1)

     total_multiply = num1*num2;

     cout<<hasil darab"<<num1<<"dan<<num2<<"ialah"<<total_multiply endl;

     break

case 2:(selection=2)

     total_divide = num1/num2;

     cout<<hasil_bahagi"<<num1<<"dan<<num2<<"ialah"<<total_divide endl:

     break

}

return 0;

}

4. Change the algebra expression to anathematic expression:

ANSWER

 a) y=(m-4ax)/79 

b) y=6bc/(45s-2xy) 

c) y=((2+AB+C)/3d)+5xyz 

d) y=(2kb/2ki)-3jb 

e) y=xy+x*x-2ab

5. Solve the statement below to find m value show the working.

a) m=5 

m*=m(3+4)*2 

b) m=2 

m*=((3*4)1/2)-9 

ANSWER

a) m=5 

m*=m(3+4)*2 

m=5*5(7)*2 

m=25*14 

m=350 

b) m=2 

m*=((3*4)1/2)-9 

m=2*(12*1/2)-9 

m=2*6-9 

m=12-9 

m=3 

6. Find the output for the following segment.

a) float var 1=25.12, var 2=15.0; 

if (var 1<=2)cout<<"var1 less or same as var2"; 

else cout<<"var1 bigger than var2"; 

b) in n=20; n/=5; 

ANSWER

a) 

float var 1=25.12, var 2=15.0; 

if (var 1<=2) 

cout<<"var1 less or same as var2"; 

else 

cout<<"var1 bigger than var2"; 

output: 

if(25.12<=2) 

var 1 bigger than var 2  

b)  

int n=20; 

n/=5; 

output: 

n=n/5 

n=20/5 

n=4 

7. Convert the while statement below for statement 

int j=10; while (j>0) 

{ 

cout<<" "<

J--J 

} 

ANSWER

int j; 

for(j=10;j>0;j--) 

{ 

cout<<" "<

} 

8. Write of program that needs 4 prices using while loop 

and calculate the sum of the thing a program must 

use function while for calculate the average of the 

prices. 

#include 

main () 

{ 

int k; 

float P,total,average; 

K=1 

while (k<=4) 

{ 

cout<<"Enter price"<<k<<"=j;

cin>>P; 

k++; total=total+P; 

} 

average=total/4; 

cout<<"your total is"<<total<<"and average="" is"average;=""

return 0; 

}