MBA Exam

If x <= y <= z are positive integers,x^-1 + y^-1 + z^-1 = 7/15Then x cannot be (more than one option may be correct. Mark all correct options)

1) 4
2) 5
3) 6
4) 7
5) 9

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MBA Other Question

The cost of 3 bananas and 8 apples is Rs 48 more than the the cost of 4 chikoos.The cost of 5 bananas and 7 chikoos is Rs 29 more than the cost of 2 apples, whereas the cost of 4 bananas ,3 chikkos and 1 apple is 31. Find the cost of 1 apple,1 banana and 1 chikoo.

1) 13
2) 19
3) 21
4) 12
There are 6 cities, of which each is directly connected to every other city. How many different routes can one trace from city A to city B, such that no city is touched more than once in any one route?

1) 2^4 - 1
2) 2^6 + 1
3) 2^6
4) 2^4