MBA Exam

Three whole numbers are taken at random and multiplied. What is the probability that the units digits of the product is any of the 1,3, 7 or 9??Post d approach!!

1) 2/5
2) 3/25
3) 8/125
4) 5/9

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MBA Other Question
The question given below is followed by two statements, A and B. Mark the answer using the following instructions:Mark (a) if the question can be answered by using Statement A alone, but cannot be answered by using Statement B alone.Mark (b) if the question can be answered by using Statement B alone, but cannot be answered by using Statement A alone.Mark (c) if the question cannot be answered even by using both the statements together.Mark (d) if the question can be answered by using either statement alone.Q. What is the value of ‘x’?A. ‘x’ is a real number and ‘x’ satisfies the equation |x – 1.5| + |x – 2.5| + |x – 3.5| = 2.B. ‘x’ is a natural number and ‘x’ satisfies the equation |x – 5| + |x – 10| + |x – 15| + |x – 20| = 20.

1) a
2) b
3) c
4) d
 Find the number of positive integral solutions of the equation.x (x2 – y ) = y3 + 61 [ ‘x’ and ‘y’ are positive real numbers].

1) 0
2) 1
3) 3
4) 2
5) cannot be determined.