MBA Exam

There are two containers A and B. A contains n litres of pure milk and B contains n litres of water. One litre of pure milk is transferred from A to B. Now 1 litre of the solution from B is transferred back to A. The ratio of water to milk in the 1 litre transferred from B to A is k. Once again, 1 litre of the solution is transferred from A to B. Which of the following is equal to the ratio of water to milk in this transferred one litre , In terms of "n" and "k" ?

1) n : k
2) n : k^2
3) k : (n + 1)^2
4) k : (n - 1)^2

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MBA Other Question
A cube of edge 12 ft is placed on the floor with one of the faces touching a wall. A ladder of length 35 ft is resting against that wall and is touching an edge of the cube. At what height does the end of the ladder touch the wall, given that it is more than the distance of the foot of the ladder from the wall?

1) 12 ft
2) 16 ft
3) 24 ft
4) 28 ft
 f(n)=1+2+3+4.......+nFind the sum off(1)+f(2)+f(3)+f(4)+f(5)...........+f(34)+f(35)+f(36)Kindly plz post the solution as well............Actually i dont know the anse

1) 8436
2) 9458
3) 8948
4) 7596