Calendar Trick

·          Calendar Trick §   How to find days of any Calendar date of any year?   §   First know this code for 20th century 144 025 036 ...

Trains General Concept

Trains General Concept   (1) Time taken by a train x mt long in passing a signal post or a pole or a standing man = time taken by the train...

Divisibility Tricks

·          Divisibility Tricks How can you quickly know if one number will divide evenly into another number, leaving no remainder? For ex...

BOATS & STREAMS

·          BOATS & STREAMS Important facts:   1)In water, the direction along the stream is called down stream. 2)Direction against th...