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ICSE Class IX Prelims 2021 : Computer Applications (Jamnabai Narsee School (JNS), Mumbai)

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Kanishk Israni
Maneckji Cooper Education Trust School, Mumbai

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FIRST TERM EXAMINATION OCTOBER 20 COMPUTER APPLICATIONS - PART II Std. 9 Reading Time : 1:30 p.m. to 1:45 p.m. Writing Time : 1:45 p.m. to 3:15 p.m. Uploading Time : 3:15 p.m. to 4:00 p.m. Marks: 40 Date: 10.11. 20 All working and answers to be written in the JNS notebook. On top of each page write: First Line: First and Last Name: ___________Class and Division: ________ Roll No.: _____ Second Line: Subject: _____________________ Date: ____________ Page No.: ____ On the first page write the Total No. of Pages used:_____ Do not copy the questions. Take pictures of the written pages using Scanbot App or Adobe Scan App and save as .pdf . Upload the .pdf file on Edusprint. Only when you have completed uploading the document, click on the FINISH button. This paper consists of 4 printed pages. PART 2 (40 Marks) (Attempt any four) 1. i. In a competitive examination, there were 200 questions. One candidate [5] got 187 correct and the other candidate got 195 correct. Write a program to calculate and display the percentage of correct answers each candidate got. ii. Write a program in Java to find and display the volume of a cone by accepting height and radius as input through function argument. 1 [Hint : Volume of a cone = 3 2 , = 3.14 ] 1 [5] 2. A paper roll manufacturing company offers discount to the dealer and the [10] retailer based on the length of the paper roll as per the following criteria: Length of the paper Dealer Retailer 10% 8% 15% 10% 20% 15% Up to 10 meters 10 meters and up to 20 meters More than 20 meters Write a program to input the length of the paper roll and amount of purchase. Compute and display the amount to be paid to the company by the dealer or the retailer after discount. Enter 1 for Dealer and 2 for Retailer. Sample Input: Enter the length of the paper: 30 Enter your choice : 1 for Dealer and 2 for Retailor 1 Enter Purchase amount: 50000 Sample Output : Length of the paper roll: 30 Purchase amount: 50000.0 Discount for Dealer 10000.0 Amount paid by Dealer after discount: 40000.0 3. i. Write a program to find and display the value of the given expressions: 2x 3 6 - x+5 4 [5] ; accept the value of x from the user. Sample Input : Enter the value of x: 8 Sample Output : Result = -1.0833333333333335 ii. Write a program in Java to calculate and display the base of a right angled triangle as per the formula given. Accept hypotenuse and perpendicular as input through function argument. [Hint : b= 2 2 ] 2 [5] 4. The area of the shapes, viz. rectangle, square and circle can be calculated by the [10] formula: Area of a rectangle (a = l*b) Area of square (a= side2) Area of circle (a= 2) [Hint : = 3.14] Write a menu driven program using a switch case statement to find the area of the shapes by taking suitable variables and data types. Sample Input : 1. area of rectangle 2. area of square 3. area of circle Enter your choice: 2 Enter side of square: 7 Sample Output: area of square = 49 5. The Corporation serves a notice to all the consumers regarding the supply charges of water according to the tariff given below: Particulars Up to 1500 litres. Rate 0.80 per litre More than 1500 and up to 2000 litres. 1.10 per litre More than 2000 and up to 2500 litres. 1.30 per litre More than 2500 litres. 1.50 litre Write a program to input the name of the consumer, month and litres consumed. Calculate and display the water bill with all the details. Sample Input: Enter Consumer Name: Rahul Shah Enter Month: August Enter the litres consumed: 1800 Sample Output: Consumer Name: Rahul Shah Month: August Water Consumed : 1800 Bill Amount: 1980.0000000000002 3 [10] 6. Write a menu driven program to convert one unit to another unit as per the user s choice using switch case. Choice No. Conversion 1 KB to Bytes 2 Meter to Inch 3 Gallon to Litre [Hint: 1 KB =1024 Bytes, 1 Meter = 39.34 Inches, 1 Gallon =20/9 Litres] Sample Input: Enter 1 to covert KB to Bytes Enter 2 to covert Meters to Inches Enter 3 to covert Gallon to Litre Enter your choice: 1 Enter your value in KB: 1500 Sample output: The value in Bytes = 12000 __________________________________________ 4 [10]

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Additional Info : ICSE Class IX Prelims 2020 : Computer Applications (Jamnabai Narsee School (JNS), Mumbai)

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