To find the average of 10 numbers in Kotlin using a while loop, you can follow these steps..

• Initialize variables to keep track of the sum and count of numbers.
• Use a while loop to repeatedly prompt the user for input until you have received 10 numbers.
• Inside the loop, add each input number to the sum and increment the count.
• After the loop, calculate the average by dividing the sum by the count.

Here's an example Kotlin code that demonstrates this:

fun main() {
    var sum = 0.0
    var count = 0

    while (count < 10) {
        print("Enter number ${count + 1}: ")
        val input = readLine()
        val number = input?.toDouble()

        if (number != null) {
            sum += number
            count++
        } else {
            println("Invalid input. Please enter a valid number.")
        }
    }

    if (count > 0) {
        val average = sum / count
        println("The average of the 10 numbers is: $average")
    } else {
        println("No valid numbers entered.")
    }
}