MBA
Exam
What is the probability that the product of two integers chosen at random has the same unit digit asthe two integers? 1) 3/10 2) 1/25 3) 4/15 4) 7/15
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MBA Other Question
Ten books are arranged in a row on a book shelf .A student has to select three out of these ten books in such a way that no two books selected by him must have been lying adjacently .In how many ways can he make the selection??share ur approach?? 1) 56 2) 64 3) 72 4) none of these
A cube is painted with red colour and then cut into 64 small identical cubes. If two cubes are pickedrandomly from the heap of 64 cubes, what is the probability that both of them have exactly two facespainted red?Explain approach. 1) 31/63 2) 23/168 3) 47/84 4) 1/4