MBA Exam

If X and Y are positive integers and X + Y = 1,
what is the least value of(X + 1/X)^2 + (Y+1/Y)^2 ?1) 24 2) 12.5 3) 20 4) None of these

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

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MBA Other Question

A solid sphere is cut into 16 identical pieces with 5 cuts. What is the percentage increase in the combined total surface area of all the pieces over that of the original sphere?

1) 350%
2) 150%
3) 200%
4) 250%
A 3-digit no. is 45 more than 10 tims the sum of its digit.Its tens digit is one-third of the sum of its other two digits.Find the sum of it digits?

1) 9
2) 8
3) 16
4) 12