Q3.A, B, and C try to hit a target simultaneously but independently. Their respective probabilities of hitting the target are 3/4 , 1/2 , 8/5 . The probability that the target is hit by A or B but not by C is
Q7.A man has 3 fifty rupee notes, 4 hundred rupees notes and 6 five hundred rupees notes in his pocket. If 2 notes are taken at random, what are the odds in favour of both notes being of hundred rupee denomination?
Q8.A letter is taken at random from the letters of the word ‘ASSISTANT’ and another letter is taken at random from the letters of the word ‘STATISTICS’. The probability that the selected letters are the same is