Parking fee problem solution

Question

Output is ok. But they said something wrong. I can't find the problem.
fun main(args: Array<String>) {
var hours = readLine()!!.toInt()
var total: Double = 0.0
if(hours >5 && hours<24){
total = 5+(hours -5)*0.5
}else if(hours >24){
total =total+15*(hours/24)+0.5*(hours%24)
}else if(hours<=5){
total= total*hours
}
println(total)
}

Answer 1

else if(hours<=5){
total= 1.0*hours
}

Answer 2

Simba Thanks ❤️

Answer 3

fun main(args: Array<String>) {
var hours = readLine()!!.toInt()
var total: Double = 0.0

if(hours in 0..5){
total=hours*1.0

}

else if(hours in 6 until 24){
total=5.0+((hours-5.0)*0.5)

}

else if(hours>24){
val x=hours/24
total=(15.0*x)+(hours-(x*24))*0.5
}

else{
total=0.0
}
println(total)
}