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Home / Class VIII / Chapter 8: QBASIC statements and program

Chapter 8: QBASIC statements and program

Jul 10, 2025  SAROJ BHATTARAI  5,448 views
Chapter 8: QBASIC statements and program
CLS (Clear Screen)

PRINT Statement: Display information on screen.

Syntax:

PRINT “Sample text”

OR

age = 13

PRINT age

PRINT “Age is =”;age

 

INPUT Statement: It helps to take input from the user.

Syntax:

INPUT variable_name

INPUT “Any text”;VN

Q1) Write a program to calculate area of rectangle. [A=l*b]

CLS
INPUT “Enter length”;l
INPUT “Enter Breadth”;b
A=l*b
PRINT “Area is: ”;A
END

Q2) WAP to calculate simple interest [i=(p*t*r)/100]

CLS
INPUT “Enter principal”;p
INPUT “Enter time”;t
INPUT “Enter rate”;r
i=(p*t*r)/100
PRINT “Simple interest is: ”;i
END

Q3) WAP to calculate volume of cylinder. [v=pr2h]

CLS
pi = (22/7)
INPUT “Enter radius”;r
INPUT “Enter height”;h
v = pi*r^2*h
PRINT “Volume is”;v
END

Q4) WAP to calculate average of three number. [Av=(a+b+c)/3]

CLS
INPUT “Enter first number”;a
INPUT “Enter second number”;b
INPUT “Enter third number”;c
av=(a+b+c)/3
PRINT “Average is: ”;av
END

Q5) WAP to convert Nepali rupee into American dollar. [1$ = 118Rs]

CLS
INPUT “Enter Nepali rupee”; N
A = N/118
PRINT “America dollar”; A
END

Q6) WAP to convert Celsius temperature into Fahrenheit. c 0 100 = f 32 180 𝑐-0100=𝑓-32180 

18*c = 10*f-320

18*c+320 = 10*f

f = (18*c+320)/10

C = (10*f-320)/18

CLS
INPUT “Enter Celsius”; c
f = (18*c+320)/10
PRINT “Fahrenheit temperature”; f
END

IF Statement:

  1. IF statement
  2. IF ELSE statement
  3. ELSEIF statement

1) IF statement

Syntax:

IF (condition) THEN

Block of statements//

END IF

Program example:

CLS
INPUT “Enter your age”; a
IF a>18 THEN
PRINT “You are eligible to vote”
END IF
END
CLS
INPUT “Enter your percentage”; p
IF p>=40 THEN
PRINT “You are pass”
END IF
END

2) IF ELSE statement

Syntax:

IF (condition) THEN

Block of statements no.1//

ELSE

Block of statements no.2//

END IF

Program example:

CLS
INPUT “Enter your age”; a
IF a>18 THEN
PRINT “You are eligible to vote”
ELSE
PRINT “You are not eligible to vote”
END IF
END
CLS
INPUT “Enter your percentage”; p
IF p>=40 THEN
PRINT “You are pass”
ELSE
            PRINT “You are fail”
END IF
END

Q1) Write a program to input 2 different numbers and find the greatest number.

CLS
INPUT “Enter two number”; a,b
IF a>b THEN
            PRINT a; “is greatest”
ELSE
            PRINT b; “is greatest”
END IF
END

Q2) Write a program to check whether the given number is odd or even.

CLS
INPUT “Enter a number” ; n
a = n MOD 2
IF a=0 THEN
 PRINT n; ”is Even”
ELSE
 PRINT n; ”is Odd” 
END IF
END

Q3) Write to check whether the given number is exactly divisible by 5 and 7. 

CLS
INPUT “Enter a number” ; n
a = n MOD 5
b = n MOD 7
IF a=0 AND b=0 THEN
    PRINT n;” is divisible by both 5 and 7”
ELSE
    PRINT n;”is not divisible by both 5 and 7”
END IF
END

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