Qbasic program to get output using dry run table | SEE computer science programming guide in Qbasic -to find sum of numbers divisible by 4

 

QBasic programs collection-Especially for SEE (Grade-10)

QBasic program to know the output of program using dry run table- to find the sum of numbers between 1 and 20 and which are divisible by 4, using sub procedure

declare sub sum(A)

A = 2

Call sum(A)

End

Sub sum (A)

    While A <= 20

        If A Mod 4 = 0 Then

            s = s + A

        End If

        A = A + 1

    Wend

    Print s

End Sub

Dry run table

A	While A<=20	If A Mod 4 = 0	S=s+A	A=A+1
2	yes	no		A=3
3	yes	no		A=4
4	yes	yes	S=s+A=0+4=4	A=5
5	yes	no		A=6
6	yes	no		A=7
7	yes	no		A=8
8	y	yes	S=4+8=12	A=9
9	yes	n		=10
10	yes	n		=11
11	yes	N		=12
12	yes	y	=12+12=24	A=13
13	yes	n		=14
14	yes	n		=15
15	yes	n		=16
16	yes	y	=24+16=40	=17
17	yes	n		=18
18	yes	n		=19
19	yes	n		=20
20	yes	y	=40+20=60	21
21	no

output:60

Qbasic program to get output using dry run table | SEE computer science programming guide in Qbasic -to find sum of 1 to 9 with 2 step increment

 QBasic programs collection-Especially for SEE (Grade-10)

QBasic program to know the output of program using dry run table- to find the sum of numbers between 1 and 9 using function procedure

declare function find()

Print find

End

Function find ()

    For n = 1 To 9 Step 2

        Let s = s + n

    Next n

    find = s

End Function

Dry run table

N=1 to 9 step 2	S=s+n	find
N=1;true	S=0+1=1
N=3;true	S=1+3=4
N=5;true	S=4+5=9
N=7;true	S=9+7=16
N=9;true	S=s+N=16+9=25
N=11;false		Find=s=25

output

25

Qbasic program to get output using dry run table | SEE computer science programming guide in Qbasic - for given numeric pattern 5,55,555

QBasic programs collection-Especially for SEE (Grade-10)

QBasic program to know the output of program using dry run table- to print the numeric pattern 5,55,555 etc

'CDC model question set 1

declare sub Result()

Call result

End

Sub result ()

    N = 5

    C = 1

    While C <= 5

        Print N

        N = N * 10 + 5

        C = C + 1

    Wend

End Sub

Dry run table with output

N	C	C<=5	Print N	N=N*10+5	C=c+1
5	1	yes	5	=5*10+5=55	2
55	2	yes	55	=55*10+5=555	3
555	3	yes	555	=555*10+5=55555	4
5555	4	yes	5555	=5555*10+5=55555	5
55555	5	yes	55555	=55555*10+5=555555	6
555555	6	no

output:

5

55

555

5555

55555