MBA Exam

x^4-y^4 = 844Find the number of pairs of positive integers (x,y)a) 3!b) 2!c) 4d) 4!-2!*2e)none of these

1) A
2) B
3) C
4) D
5) E

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MBA Other Question

Nine dots are placed on a piece of paper. Find the maximum number of right angled triangles which
can be formed by joining any three dots.Please tag me in the solution.

1) 18
2) 36
3) 40
4) 44
5) 48
Concentriccircles radii 1, 2, 3, ... , 100 are drawn. The interior of thesmallest circle is colored red and the annular regions are coloredalternately green and red, so that no two adjacent regions are the samecolor. The total area of the green regions divided by the area of thelargest circle is

1) 1/2
2) 51/100
3) 101/200
4) 50/101
5) None of the foregoing