MBA Exam

in how many ways two people can be arranged to sit on three chairs??approach please,,m quite confused in basic of this....

1) 2^3
2) 3^2
3) 6
4) none

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MBA Other Question

A box contains 5 distinct pair of black shoesand 10 identical piars of brown shoes. The minimum number of shoes to be taken out from the box to be absolutely certain of getting a pair of shoes is

1) 6
2) 16
3) 21
4) 3
There are three galleries in a coal mine.On the first day ,two galleries are operative and after sometime ,the third gallery is made operative .With this ,the output of the mine became half as large again.What is the capacity of the second gallery , as a percentage of the first ,if it is given that a 4 month output of the first and the third galleries was the same as the annual output of the second gallery?

1) 70%
2) 64%
3) 60%
4) 75%
5) 80%