Download the Speed Calculations Tricks (in PDF) from below link
Speed Calculation Tricks
Download the same notes in different colour effects from 2nd link
Speed Calculation Tricks, Link 2
To calculate , multiply, divide and many more...
This is the best notes with all sorts of problem related to Time and Work. You can also solve Pipe and Taps problem based on these shortcuts.
10 types of questions have been discussed related to Time and Work. All type of questions have been...