quote.kt

fun quote(width: Double, length: Double, pricePerSqrMtr: Double, roundUp: Boolean): Double {
    return carpetPrice(pricePerSqrMtr, roundUp, roomArea(width, length)())
}

fun roomArea(width: Double, length: Double): ()->Double {
    fun area(): Double {
        return width * length
    }

    return ::area
}