MBA Exam

Let N = 7x12 + 8x9 + 9x6 – x4 – 2x3 – 3x2 + 169 with x = 6m + n where m and n are natural numbers and m < n < 6. What is the remainder when N is divided by 6?

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

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MBA Other Question

A committee of 3 experts is to be chosen from a group of 7 people, of which 3 are CAs, 3 are MBAs and one is both a CA and an MBA. The committee must have at least 1 with only a CA and 1 with only an MBA. In how many ways can the committee be selected?

1) 31
2) 35
3) 34
4) 33
N taps numbered from 1 to N are fitted to tank.The rate at which nth tap for n=1,2,3.... N fill the tank.equals the sum of rate of all the taps numbered below it. If the sixth tap ca fill it in 80 mins.Find the time in which the ninth tap can fill it (mins)

1) 10
2) 5
3) 20
4) 40
5) 25