(X) QBASIC Output Practice


1. Write down the output of the given program. Show with dry run in table.

SEE (Supplementary/Upgrade) 2075 (2019)
DECLARE FUNCTION SUM (a) CLS a = 9 PRINT SUM (a) END FUNCTION SUM (a) FOR K = 1 TO a IF K MOD 2 = O THEN S = S + K END IF NEXT K SUM = S END FUNCTION
Answer:
Dry Run:
FOR I= 1 to a(9) K MOD 2 = 0 S=S+K
1 No -
2 Yes S=0+2=2
3 No -
4 Yes S=2+4=6
5 No -
6 Yes S=6+6=12
7 No -
8 Yes S=12+8=20
9 No -
∴ Final Output is : 20

2. Write down the output of the given program. Show with dry run in table.

SEE 2075 (2019) Province-2

DECLARE FUNCTION SQD(N) CLS S = 0 FOR L = 1 TO 3 READ NUM S = S +SQD (NUM) NEXT L PRINT " Sum" ; S DATA 2,4,6 END FUNCTION SQD (N) SQD = N^2 END FUNCTION

Answer:
Dry Run:
L N SQD=N^2 S=S+SQD(NUM)
1 N=2 SQD=2*2=4 S=0+4=4
2 N=4 SQD=4*4=16 S=4+16=20
3 N=6 SQD=6*6=36 S=20+36=56
∴ Final Output is : Sum 56

3. Write down the output of the given program. Show with dry run in table.

SEE 2075 (2019)

DECLARE SUB series ( ) CALL series END SUB series X = 1 FOR K = 1 TO 4 PRINT X; X = X + K NEXT K END SUB

Answer:
Dry Run:
X K Print X; X=X+K
1 1 1 X=1+1=2
2 2 2 X=2+2=4
4 3 4 X=4+3=7
7 4 7 X=7+4=11
∴ Final Output is : 1 2 4 7

4. Write down the output of the given program. Show with dry run in table.

SEE 2074 (2018)

DECLARE SUB Display (T$) CLS T$ = "COMPUTER" CALL Display (T$) END SUB Display (T$) FOR C = 1 TO LEN (T$) STEP 2 D$ = MID$ (T$, C, 1) PRINT D$; NEXT C END SUB

5. Write down the output of the given program. Show with dry run in table.

DECLARE SUB PATTERN() CALL PATTERN END SUB PATTERN A=2 FOR I = 1 TO 5 PRINT A; A=A+2 NEXT I END SUB

Answer:
Dry Run:
A FOR I= 1 to 5 Print A; A=A+2
2 1 2 A=2+2=4
4 2 4 A=4+2=6
6 3 6 A=6+2=8
8 4 8 A=8+2=10
10 5 10 A=10+2=12
∴ Final Output is
2 4 6 8 10

6. Write down the output of the given program. Show with dry run in table.

DECLARE SUB PATTERN() CALL PATTERN END SUB PATTERN FOR I = 1 TO 5 FOR J= 1 TO I PRINT J; NEXT J PRINT NEXT I END SUB
Answer:
Dry Run:-
I J= 1 to I Print J;
1 1-1 1
2 1-2 12
3 1-3 123
4 1-4 1234
5 1-5 12345
∴Final output is 1 12 123 1234 12345

7. Write down the output of the given program. Show with dry run in table.

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
Answer:
Dry Run:-
N C C<=5? PRINT N N=N*10+5 C=C+1
5 1 1<=5? YES 5 N=5*10+5
=55		 C=1+1=2
55 2 2<=5? YES 55 N=55*10+5
=555		 C=2+1=3
555 3 3<=5? YES 555 N=555*10+5
=5555		 C=3+1=4
5555 4 4<=5? YES 5555 N=5555*10+5=55555 C=4+1=5
55555 5 5<=5? YES 55555 N=55555*10+5
=555555		 C=5+1=6
∴Final Output is: 5 55 555 5555 55555

8. Write down the output of the given program. Show with dry run in table.

DECLARE SUB SHOW (A) N=87 CALL SHOW(N) END SUB SHOW(A) DO B = A MOD 6 + 3 IF B MOD 4 = 0 THEN GOTO AA PRINT B; AA: A=A-10 LOOP WHILE A >= 50 END SUB
Answer:
Dry Run:- N=87
A=87
B= A MOD 6 + 3 B MOD 4=0? PRINT B; A=A-10 A>=50?
B=87 MOD 6 + 3
=3+3=6		 6 MOD 4 =0? (NO) 6 A=87-10=77 77>=50? Y
B=77 MOD 6 + 3
=5+3=8		 8 MOD 4=0? YES – A=77-10=67 67>=50? Y
B=67 MOD 6
=1+3=4		 4 MOD 4=0? YES – A=67-10=57 57>=50? Y
B=57 MOD 6
= 3+3=6		 6 MOD 4=0? NO 6 A=57-10=47 47>=50? NO
∴Final Output is:
6   6

9. Write down the output of the given program. Show with dry run in table.

DECLARE SUB OUTPUT1 (A) CLS N=135 CALL OUTPUT1(N) END SUB OUTPUT1(A) DO WHILE A<>0 R= A MOD 10 T=T+R A=A\10 LOOP PRINT T END SUB
Answer:
Dry Run:
N=135
A=135
A<>0? R= N MOD 10 T=T+R A=A\10 PRINT T
135<>0? YES R= 135 MOD 10=5 T=0+5=5 A=135\10=13 -
13<>0? YES R=13 MOD 10=3 T=5+3=8 A=13\10=1 -
1<>0? YES R= 1 MOD 10=1 T=8+1=9 A=0 -
0<>0? NO - - - 9
∴Final Output is
9

10.Write down the output of the given program. Show with dry run in table.

DECLARE SUB REMINDER (R) CLS FOR I = 1 TO 4 READ X CALL REMINDER (X) NEXT I DATA 56,28,8,48 END SUB REMINDER (R) R1 = R MOD 4 R2 = R MOD 3 IF R1 = 0 AND R2<> 0 THEN PRINT R END IF END SUB
Answer:
Dry Run:
X R R1=R MOD 4 R2=R MOD 3 R1=0 AND R2<>0 PRINT R
56 56 R1 = 0 R2=2 YES 56
28 28 R1=0 R2=1 YES 28
8 8 R1=0 R2=2 YES 8
48 48 R1=0 R2=0 NO -
∴Final output is:
56 28 8

11.Write down the output of the given program. Show with dry run in table.

DECLARE SUB show(abc$) CLS abc$ = "ZHTUOMENXSA" CALL show(abc$) END SUB show(abc$) Y = 48 FOR I = 1 TO 5 N = Y MOD 7 PRINT MID$(abc$,n,1); Y = Y - 1 NEXT I END SUB
Answer:
Dry Run:
Y I N=Y MOD 7 Print MID$(abc$,N,1); Y=Y-1
48 1 6 M 47
47 2 5 O 46
46 3 4 U 45
45 4 3 T 44
44 5 2 H 43
∴Final output is: MOUTH

12.Write down the output of the given program. Show with dry run in table.

DECLARE SUB ABC() CALL ABC END SUB ABC N = 10 C = 1 D = 5 WHILE C<=5 PRINT N N = N + D C = C + 1 D = D + 5 WEND END SUB
Answer:
Dry Run:
N C WHILE N<=5? Print N N=N+D C=C+1 D=D+5
10 1 YES 10 10+5=15 2 5+5=10
15 2 YES 15 15+10=25 3 10+5=15
25 3 YES 25 25+15=40 4 15+5=20
40 4 YES 40 40+20=60 5 20+5=25
60 5 YES 60 60+25=85 6 -
∴Final output is: 10 15 25 40 60

13.Write down the output of the given program. Show with dry run in table.

DECLARE SUB RESULT() CALL result END SUB result () FOR I = 1 TO 4 FOR J = 1 TO 5 PRINT (I + J) * 10 ; NEXT J PRINT NEXT I END SUB
Answer:
Dry Run:
Outer Loop Inner Loop OUTPUT
IJ(I+J)*10
11-5 (1+1)*10=20
(1+2)*10=30
(1+3)*10=40
(1+4)*10=50
(1+5)*10=60
21-5 (2+1)*10=30
(2+2)*10=40
(2+3)*10=50
(2+4)*10=60
(2+5)*10=70
31-5 (3+1)*10=40
(3+2)*10=50
(3+3)*10=60
(3+4)*10=70
(3+5)*10=80
41-5 (4+1)*10=50
(4+2)*10=60
(4+3)*10=70
(4+4)*10=80
(4+5)*10=90
∴Final output is: 20 30 40 50 60 30 40 50 60 70 40 50 60 70 80 50 60 70 80 90

14. Write down the output of the given program. Show with dry run in table.

DECLARE FUNCTION NUMPRO(A AS INTEGER, B AS INTEGER) DIM N, M, S AS INTEGER CLS DATA 2,5 READ M%,N% S = NUMPRO(N%, M%) PRINT "Sum of all the values is";S END FUNCTION NUMPRO(A AS INTEGER,B AS INTEGER) S = 0 FOR C=1 TO A% PRINT C*B% S = S + C * B% NEXT C NUMPRO=S END FUNCTION
Answer:
Dry Run:
A=N=5
B=M=2
Counter Loop OUTPUT S
CC*B%S=S+C*B%
11*2=2 S=0+1*2=2
22*2=4 S=2+2*2=6
33*2=6 S=6+3*2=12
44*2=8 S=12+4*2=20
55*2=10 S=20+5*2=30
∴Final output is: 2 4 6 8 10 Sum of all the values is 30

15. Write down the output of the given program. Show with dry run in table.

DECLARE SUB SUM(A,B,S) DECLARE FUNCTION ADD(X,Y) CLS M=5 : N=10 A = ADD(M, N) B = ADD(M, N) CALL SUM(A,B,S) PRINT "SUM=";S END SUB SUM(A,B,S) S = A + B END SUB FUNCTION ADD(X,Y) ADD = X + Y END FUNCTION
Answer:
Dry Run:

Here, M=5 and N=10 A=ADD(5,10)=15 B=ADD(5,10)=15 S=A+B=15+15=30 Note: For confirmation of value of A and B; you can use Print A,B before call statement.

∴Final output is: SUM=30

16. Write down the output of the given program. Show with dry run in table.

DECLARE FUNCTION ESUM() PRINT ESUM END FUNCTION ESUM() FOR A = 2 TO 10 STEP 2 S = S + A NEXT A ESUM = S END FUNCTION
Answer:
Dry Run:
Counter Loop SUM
AS=S+A
2S=0+2=2
4S=2+4=6
6S=6+6=12
8S=12+8=20
10S=20+10=30
∴Final output is: 30