Fractions Laddoos Problem

The video below is only first (Part-1) of the three videos. It captures the process that students go through while solving the following problem:

PROBLEM:  Four friends take away the laddoos from the basket, but only one by one (i.e. one after the another). The 1st person takes one fourth of the total quantity and leaves. The 2nd person takes one-third of the remaining quantity and leaves. The 3rd person takes half of what was left and the 4th person takes away the remaining 2 laddoos, thus emptying the basket. The question is to figure out the total number of laddoos and the amount each friend takes.

To check All the Three videos of this problem, click on this link:
https://www.youtube.com/playlist?list=PLZBBZFls_2nE6opV47C367_aV_SDi5z5Y