MBA Exam

If f(x) = ax2 + bx + c, f(2) >-2, f(-2) <2 and f(5) <-6, then the sign of 'a' is

1) positive
2) negative
3) either positive or negative.
4) None of these

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MBA Other Question

If n is an odd natural number, what is the highest number that always divides n(n^2-1) ?

1) 6
2) 8
3) 12
4) 24
how many integral solution of this equation 5x-7y=1234 such that y= upto-80 or upto80,n 'y' can be also equals to -80 or 80...sry i dont know ans

1) 21
2) 22
3) 23
4) 24
5) 32