Ch 1: Algorithm and Flowchart Class 9 Question Answer
Ch 1: Algorithm and Flowchart Class 9 Question Answer
Q1. What is Algorithm?
Q2. What is flowchart? Write name and purpose of any two symbols used in flowchart.
Q3. Which symbol is used for decision in flowchart?
Q4. List down all the standard graphics for making a flowchart.
Q5. Write an algorithm to print first 10 natural numbers.
Step 1. Initialize X as 0 Step 2. Increment X by 1 Step 3. Print X Step 4. If X is less than 20 then go back to step 2.
Q6. Write an algorithm to print first 10 odd numbers.
Step 1. Initialize X as 1 Step 2. Increment X by 2 Step 3. Print X Step 4. If X is less than 20 then go back to step 2.
Q7. Write an algorithm to convert Temperature from Fahrenheit (℉) to Celsius (℃)
Step 1: Input the temperature in Fahrenheit (let’s call it Step 2: Calculate the temperature in Celsius using the formula: C=5/9×(F−32) where C is the temperature in Celsius. Step 3: Print the temperature in Celsius.F).
Q8. Write an algorithm to prepare instant noodle/maggi.
Steps are: 1. Take a pan and boil approx. 200 ml of water. 2. Add noodles and tastemaker to the boiling water. 3. Stir constantly and cook in the open pan till the water is soaked by the noodles. 4. Serve Hot
Q9. Write an algorithm to prepare tea.
1. Take a pan and boil water. 2. Add tea leaves 3. Add milk, sugar according to your taste. 4. Filter it and serve
Q10. Write an algorithm to prepare coffee.
1. Take a pan and boil water. 2. Add coffee powder and stir 3. Add milk, sugar according to your taste. 4. Serve Hot
Q11. Draw a flowchart to display first 20 natural numbers.
Q12. Draw a flowchart to convert Temperature from Fahrenheit (℉) to Celsius (℃)
Q13. Draw a flow chart to calculate average of three numbers.
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