PROMETRICS Finance : Brain teasers and maths puzzles

Brain teasers and maths puzzles

PSYCHOLOGY EXPERIMENT

ILLUSION/SEEING IS BELEIVING

RUBBER HAND EXPERIMENT

Brain teasers and maths puzzles

CHANGE OF VIEW

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Look at the plates,

All of them are turned over...

However, there are few that are not upside down, and the moment you identify those, all the plates will be turned over.

Awesome!

And that's the fact of life & mind... When you see anything as negative, you see negative...

But when u see it as positive... The same negative appears positive... !

Train your mind to see positive in every situation !

SHORTCUT TECHNIQUES

Wu's Squaring Trick, named after the famous Scott Wu, is a technique used to quickly square numbers over 25 in your head. It uses the identity

                             $n^2 = (n-25) \cdot 100 + (n-50)^2$

For example,

                             $62^2 = 37 \cdot 100 + 12^2 = 3844$

                             $44^2 = 19 \cdot 100 + 6^2 = 1936$

                             $77^2 = 52 \cdot 100 + 27^2 = 5929$