In this article, we are given a positive integer n and the task is to round the number to the next whole number divisible by 5. There are various methods to Round off a number to the next multiple of 5 using JavaScript:
- Using Math.ceil() method
- Using Math.floor() method
Examples:
Input : 46 Output : 50 Input : 21 Output : 25 Input : 30 Output : 30
Approach 1:
- Take the number in a variable.
- Divide it by 5 and get the decimal value.
- Take the ceil value of the decimal value by using math.ceil().
- Multiply it by 5 to get the result.
Example:
javascript
<script> function round(x) { return Math.ceil(x / 5) * 5; } var n = 34; console.log(round(n)); </script> |
Output:
35
Approach 2:
- Take the number in a variable.
- If it is divisible by 5, return the same number.
- Else divide it by 5, take the floor value and again multiply it by 5 and add 5 as well.
Example:
javascript
<script> function round(x) { if (x % 5 == 0) { return (Math.floor(x / 5)) * 5; } else { return ((Math.floor(x / 5)) * 5) + 5; } } var n = 34; console.log(round(n)); </script> |
Output:
35
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