MBA Exam

A bag contains 3 white and 2 red balls and a box contains only 1 white ball. A fair coin is tossed. If heads appears, then 1 ball is drawn at random from the bag and placed in the box and if tails appears, then 2 balls are drawn at random from the bag and placed in the box. 1 ball is now drawn at random from the box. What is the probability that it is white?

1) 13/30
2) 23/30
3) 19/30
4) 2/3

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MBA Other Question

A team of 8 students go on an excursion, in two cars, of which one can seat 5, other can seat 4. In how many ways they can travel..Enjoy.!!!!

1) 9
2) 126
3) 26
4) 392
An urn contain 9 blue, 7 white and 4 black balls. If 2 balls are drawn at random, then what is the probability that only one ball is white ?

1) 71/190
2) 121/190
3) 91/190
4) 93/190
5) None of these