MBA Exam

Find all positive integers a and b such that a^b = b^a

1) 0
2) 1
3) 2
4) 3
5) more than 3

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MBA Other Question

Devilal lives in Sham Sharvan colony where each house has a number. If Devilal's house number is a multiple of 3, then it is a number from 50 through 59. If his house number is not a multiple of 4, then it is a number from 60 through 69. If his house number is not multiple of 6, then it is a number from 70 through 79. What is his house number?
Good One !!

1) 72
2) 57
3) 76
4) 54
Sitter Yana and Gupta leave points x and y towards y and x respectively simultaneously and travel in the same route. After meeting each other on the way, Yana takes 4 hours to reach her destination, while Gupta takes 9 hours to reach his destination. If the speed of Yana is 48 km/hr, what is the speed of Gupta? 1)72 kmph 2)32 mph 3)20 mph 4)None of these

1) 1
2) 2
3) 3
4) 4