MBA Exam

7. The equations x2 + ax + b = 0 and x2 - ax + b = 0 are such that the roots of both are real and the roots of the latter are 6 more than the roots of the former. Which of the following can be a value of (a, b)?Pls explain in detail.

1) (3,4)
2) (6,4)
3) (2,5)
4) (6,10)

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MBA Other Question

if n is an integer then how many values of n will have an integral value of (16n^2+7n+6)/n

1) 2
2) 3
3) 4
4) none of these
Manisha and Nilam were playing in the backyard. They were building a small hut with pebbles however there were not adequate number of pebbles in the backyard. They called Mohit whose home was 1000 m away from their home. But he can carry maximum of 1000 pebbles at a time. He has 3000 pebbles. Unfortunately he loses 1 pebble per meter he commute or part there of. What is maximum number of pebbles he can provide to his friends?

1) 833
2) 500
3) 667
4) 433