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When you click on the “OK” button, with the message “This page says”. Then a new window appears as shown below:
Lab Assignment ‘n Activity #Computational Thinking
1. Write JavaScript code for the following:
• Accept three numbers from the user and display the largest number.
• Accept principal amount and rate from the user. Calculate simple interest as follows:
Principal Amount Time
>=25000 10 years, 5 years otherwise
• Accept salary of an employee from the user. Deduct the income tax from the salary on the following basis
and finally display income tax and net salary.
Salary Income Tax
> `15000 30%
Between `7000 – `15000 20%
<`7000 10%
• Calculate discount price base on total amount. If amount is less than 10000 then no discount. If amount is
less than 20000 then discount is 5%. If amount is less than 30000 then discount is 10%. If amount is more
than 50000 then discount is 15%. [CBSE Handbook]
2. Predict the output of the following code:
<HTML>
<BODY>
<SCRIPT>
var num1=prompt("Enter a number");
document.write("Number entered is :"+num1);
document.write("<br> <br>");
if (num1%2==0) {
document.write(num1+" is an even number");}
else {
document.write(num1+" is an odd number");}
</SCRIPT>
</BODY>
</HTML>
JavaScript Part 1 363

