A coin whose faces are marked `3 and 5` is tossed 4 times. The odds against the sum of the numbers thrown being less than 15 are

A coin whose faces are marked 3 and 4 is tossed five times. Find the probability of getting sum atleast 17.

A coin is tossed n times. Find the probability of odd numbers of heads.

Five coins whose face are marked 3, 4 are thrown. The chance of obtaining a total of 18 is

Five coins are tossed whose faces are marked 2 and 3 . Find the probability of getting sum 12.

Five coins whose faces are marked 3,4 are thrown.The chance of obtaining a total of 18 is

Six faces of a die are marked with numbers 1,-1,0,-2,2,3 and the die is thrown thrice.The probability that the sum of the numbers thrown is six,is