A bag contains infinitely many sticks that range from 5cm in length to 15cm in length. Consider a game where a person has to draw five sticks from the bag randomly. For every stick that is equal to or smaller than 8cm, the player gets 10 Rs. For example, If a person draws five sticks and three of them are equal to or smaller than 8cm in length, the person wins 30 Rs. If a person plays this game once, what are his EXPECTED earnings?. Explain your reasoning.