January 2026
Intermediate
664 pages
21h 8m
English
Content preview from Pearson IIT Foundation Class 8 Math, 2026
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CHAPTER 8
Time and Work, Pipes and Cisterns
Key Ideas
After completing this chapter, you should be able to:
✦ Know the fundamental assumptions that are made while solving the numerical problems on time and work.
✦ Understand the concept of man-days.
✦ Know about the sharing of the money earned.
✦ Find the time taken by pipes and cisterns to fill a tank.
Remember
Before beginning this chapter, you should be able to:
✦ Understand the time taken ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.