MBA Exam

In how many ways five husband wife couples can dance in pairs in a night party? Provided they form five pairs of two persons each but in no pair a husband-wife couple was together.For example: if there had been only two husband-wife couples, then there are two ways of making such pairs – (i) both husbands dance together and both wives dance together, (ii) each husband dances with other’s wife or vice-versa.

1) 44
2) 256
3) 512
4) 544
5) 945

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MBA Other Question
120 students are arranged by two teachers Rajesh and Ramesh, in ‘x’ rows and ‘y’ columns such that eachrow has the same number of students. Similarly, every column has same number of students. Each of thestudents has 15 pencils initially. Every students gets extra pencils from Rajesh. If he is in the mth row, he gets‘m’ pencils. There after each of the students gives away some pencils to Ramesh. If the student is in the nthcolumn, he gives away ‘n’ pencils. Finally the total number of pencils with the students is 16 times the totalnumber of students.Answer questions with respect to given data. choose the right answer as per you think is appropriate:Question: How many pencils did Ramesh distribute to the students?

1) 780
2) 680
3) 640
4) None of these
 What is the sum of all the possible values of a natural number ‘x’ that satisfy

1) 16
2) 18
3) 19
4) 20