MBA Exam

N = 5^(1!+2!+3!+...+12!+13!)The digits of the number N are added to get another number. Then
the digits of the number obtained are added to get yet another number.
The process is repeated till a single digit number is obtained. What is
that single digit number?

1) 7
2) 6
3) 5
4) 8

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MBA Other Question

xy=27minimum value of 3x+4y=???

1) 22
2) 36
3) 32
4) 30
Let A,B,C,...X,Y,Z be positive numbers such that AC=B,BD=C...XZ=Y.Given that A+B=1988 find max value of Y+Z?

1) 994
2) 1988
3) _/1988
4) 3976
5) None