Friday, September 21, 2012

Puzzles 77-79 : Practice puzzles for LMI test

As i told i made 3 practice puzzles Arithmetic Box, Doors, No-touch Diagonal Sudoku for the "123 GO! test". Thanks to Prasanna for test-solving it and feedback.

Also i am giving the links of other types of puzzles there in test which you can find on this blog :)


ARITHMETIC BOX ( Rated - Hard)

Place a number from the given set into each of the nine cells such that all six equations are satisfied. Equations are read left-to-right and top-to-bottom and follow BODMAS rule.
DOORS ( Rated - Easy)

Each cell represents a room. All rooms are connected (by a horizontal-vertical path) and they are separated by doors. Some doors are closed while some are open. The number in a cell indicates the amount of rooms visible from that cell (excluding the cell itself) in all four directions.
Place numbers 1~3 in the grid such that every row, column, 2x3 box and two diagonals contains each number exactly once. Same numbers cannot touch other diagonally.


  1. I am reaching a contradiction when doing this one. Has anyone else solved this puzzle. top riddles

    1. hi muhammad,
      In which puzzle you are facing contradiction out of the 3. and give more detail where you are facing the problem so that i can help it out.

  2. Hi. In arithmetic box puzzle, do we have to use other mathematic functions like factorials. I am unable to do it otherwise. Also, could you point me to some similar puzzles.

    1. Hi Nitin,
      No other Mathematic Functions are required to use other than what's already given (Multiplication, Addition and Subtraction in order). If you are still facing trouble, drop me an email at . I will guide you through some starting steps if necessary or solution :).

      I haven't created more of that kind yet but hope to do soon, but here are few more links if you need to practice these kinds of puzzles from other places:

      Do not hesitate to ask as many questions as you like.

      Happy Puzzle Solving :)

  3. I need to know the answer for arithmatic box pls...

    1. Hi,
      Welcome to GET SET GO, hope you are having fun.
      Just to avoid direct spoiler here to other solvers, here is the link to solution.
      Let me know if you have any more questions.
      Enjoy :)

    2. Hi
      The answers in the second and the third column in your puzzle is wrong. The second column is 43 where as the third column is nowhere near 12. Is there a mistake in the puzzle given?

    3. Hi Shyla ravishankar,

      Welcome to my blog. I hope you are enjoying solving the puzzles.
      To answer your question, as i have mentioned in the problem definition, you need to follow BODMAS rule. Which is nothing but (Division, then multiplication , then addition/subtraction in order).
      So now if you see 2nd Column it will be read as:
      i) Now if you solve it as in order from left to right (which I believe you did) , you get 4+4 = 8, 8*6 = 48, 48-5 = 43.
      But this is wrong.
      ii) Correct Way: 4*6 = 24, 24+4-5 = 23

      Similarly now for 3rd column:
      7*6 = 42, 6*5 = 30 , 42-30 = 12.

      I hope I answered your question and now it's clear how you get that solution.
      Please feel free to ask, if you have any more questions.