MBA Exam

Let N be the product of five different odd prime numbers. If N is the five-digit number abcab, a<8, how many values of N are possible?

1) 1
2) 2
3) 3
4) 4
5) >4

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MBA Other Question

The sum of four numbers is 253. The ratio of the first to the second is 2:3. The ratio of the second to the third is 5 : 6. The ratio of the third to the fourth is 8 : 9. What is the average of the second and the third number?Plz xplain d solution?

1) 72
2) 132
3) 60
4) 84
5) None of these
The probability of getting at least one head when an unbiased coin is tossed thrice is

1) 7/8
2) 1/2
3) 1/8
4) 1/4