MBA Exam

In how many ways can 3 couples sit around a circular table such that no pair of wife and husband are opposite to each other Solution bhi batado.. jaise circular ayega mera gadi panchar

1) 64
2) 60
3) 100
4) 96

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MBA Other Question

hw many nos btw 1 and 500 can be expressed as a diff of square of at least one way????please post the approach

1) 125
2) 250
3) 126
4) 100
123 students were aligned in a row. It is known that the average age of any three consecutive students was 20. Find the sum of ages of all students.

1) 20
2) 1230
3) 2460
4) C.B.D