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

Q6.Two items are chosen from a lot containing twelve items of which four are defective, then the probability that at least one of the item is defective

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

Q9.A matrix is chosen at random from a set of all matrices of order 2, with elements 0 or 1 only. The probability that the determinant of the matrix chosen is non zero will be

Q10.A bag contains 5 white and 3 black balls. Five balls are drawn successively without replacement. The probability that they are alternately of different colours is

Answer : Option C Explaination / Solution:

Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0