Aptitude Question:
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Alok and Bhanu play the following min-max game. Given the expression N = 9 + X + Y - Z where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu would?

Answer:

In such type of question will always sum upto a constant number when the game is played optimally.
In d above question the value of x+y-z=11.
therefore 9+11=20

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