Here is a tutorial on Number Systems. It is in powerpoint (.pptx) format and has narration. So, remember to use rehearsed timings on it for proper continuity.
It’s 6.3 MB in size, so it might take some time to download.
If you need the .ppt form of it (which is 12 MB) , do comment here with your e-mail Id . I will mail you a .rar copy of that.
It was great fun making this presentation. Hope you like it too! I realized that I “rrrr” a lot and I got to work on that. While on work on it – do check out the presentation and tell me what you think of it! 
Here’s a slide show with no narration, it will help people who have slow internet connections or limited download.
Filed under: quant Tagged: | Arithmetic, Number Systems, quant, Quantitative Aptitude
Please mail me the contents and the test series to Practise the Number Systems.
Regards
Sambit Misra