The Engineer's Companion-October Magazine Edition

India‟s First Ever Engineer‟s Magazine for Placement Preparation
Logic Equations 4x4 - #1
Logic Equations 5x5 - #2
1 2 3 4
A
B
C
D
1 2 3 4 5
A
B
C
D
E
,
,
How to play
Tips
The variables represents unique
integers ranging from 1 to the
number of variables;
Multiplication is
implicit: AB means A times B, or A *
B;
Based on the clues (equations and
inequations), use the grid to create
relations between variables and
values.
The game ends when all values are
correctly assigned to the variables.
All the above equations should be
satisfied to win the game.
Figuring out which variables can't
have the lowest or the highest values
is a good starting point, e.g, A >
B shows that A ≠ 1;
Analyzing the hypothetical
equation C + D = 4, we can make
the following statements:
o C = 1 and D = 3 OR C =
3 and D = 1;
o No other variable can be 1 or
3.
Another quick tip: A = 2B means
that A is even;
Don't be afraid of using pen and
paper. Some puzzles might require it.
Video Lesson of this Game
TO P
T h e E n g i n e e r ’ s C o m p a n i o n |63