In a game, the entry fee is Rs 5. The game consists of tossing a coin three times. IF one or two heads show, Aruna gets her entry fee back. IF she throws three heads, she recieve double the entry fee. Otherwise, she will lose.  For tossing a coin three times , find the probability that she (1) Loses the entry fee
(2) gets double the entry fee
(3) just gets her entry fee back. 
10th maths