MBA Exam

(p^2 + q^2), 2pq, (p^2 - q^2) are sides of a _____ triangle

1) right angled
2) acute angled
3) obtuse angled
4) Cannot be determined by me

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MBA Other Question

Three men toss a coin in succession for a prize to be given to the person who first obtains a head. What is third man chance of winning the prize?

1) 1/8
2) 7/8
3) 1/7
4) 1/2
Find the smallest possible integer n for which (2^2-1)(3^2-1)(4^2-1).....(n^2-1) is a perfect square.With explanation please....

1) 2
2) 4
3) 8
4) 6