Godrej Placement Paper

GOODREJ INFOTECH -16 MAR 2006 - MUMBAI
It is the different kind of test they called it box test

There boxes are given with some value u have to use given arithmetic operators and steps and u have to get required number in appropriate box, No negative marking, Only if the steps increase then 25% negative marking for each step

The Questions I remember are

1. Three boxes 1,2,3 contain values 3,17,34 get 40 in box 1 in 3 steps

2. box 1 cotain odd value X or Y the box 2 =X i.e 7 or 12 box 3= Y has value 19 if X is 7 or 31 if x is 12 get even value X or Y Use any operator
steps allowed 3

3.The three boxes 1,2,3 has values resp. AB,BC,AC Get 2A(B+C)+AC-2C(A-B)
in Box 1 using only addition in 3 steps

I am not able to clear round 1 so am not aware about round 2