MBA Exam

let w,x,y,z be four natural no.s such that their sum is 8m+10(m is natural). Which of the following is true

1) max possible value w^2+x^2+y^2+z^2=16m^2+40m+26
2) max possible value w^2+x^2+y^2+z^2=16m^2+40m+28
3) min possible value w^2+x^2+y^2+z^2=16m^2+40m+28
4) min possible value w^2+x^2+y^2+z^2=16m^2+40m+26

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MBA Other Question
A given sequence of numbers is such that in any set of four consecutive numbers, the sum of the first and third terms is equal to the sum of the second and fourth terms. If the 3rd and 14th terms are 4 and 7 respectively and the sum of the first 18 terms is 57, what is the sum of the first 23 terms?

1) 13
2) 0
3) 73
4) 63
 The function f is given by the table

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