Answer 1

Manav Roy

(2 / houses) * 100

Where houses is input.
and 2 is houses from where you get dollar bill

You want output in nearest whole number so use Math.ceil

Answer 2

https://www.sololearn.com/Discuss/2692476/?ref=app

Answer 3

Manav Roy

There would not be all toothbrush. There might be candy also but only from 2 houses you would get money. So (2 / 6) * 100

Answer 4

int houses=Convert.ToInt32(Console.ReadLine());
Console.WriteLine(Math.Ceiling(200.0/houses));