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Time & Work - Part 5 (in Malayalam)
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Lesson 5 discusses the different types of time & work problems. 3 questions are discussed and solved in this lesson. LCM & Efficiency method of solving the time and work problem is discussed. The concept of efficiency - lcm method is explained in detail. Questions including twice efficiency, leaving and joining type are included

Ismaiel Kalady is teaching live on Unacademy Plus

Ismaiel Kalady
I teach Maths & Reasoning for Kerala PSC Cracked RRB ALP, Group D, IBPS,SSC Exams Youtube - IMA Math Tricks Telegram - Issu Math Academy

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Madan Mohan Malviya was posthumously awarded the Bharat Ratna in 2015 You should not belittle his efforts to learn English A behemoth animal is shown in this Hollywood film Media can not make a reportage on a secret mission of the army This year there is austerity in rural area because of drought He was obdurate to go alone in the
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sir, your teaching is very interesting. thank you.
useful class ..................thank u sir
  1. TIME & WORK LCM - Efficiency Shortcut Tricks 5 20 QUESTIONS unacademy


  2. Course Overview . Basics of Time & Work Problems LCM (Efficiency) Method . In-depth Analysis of Efficiency method through Questions Advanced Tricks to Solve Quickly . Different Types of Time & Work Problems .Previous Year PSC Questions


  3. 13. A man is twice as fast as women and a women is twice fast as a boy in doing a work. If all of them together can finish the work in 7 days, a boy will do it alone in:


  4. 13. A man is twice as fast as women and a women is twice fast as a boy in doing a work. If all of them together can finish the work in 7 days, a boy will do it alone in: Let Efficiency of Boy >1,t hen Women 2, Men 4


  5. 13. A man is twice as fast as women and a women is twice fast as a boy in doing a work. If all of them together can finish the work in 7 days, a boy will do it alone in: Let Efficiency of Boy >1,t hen Women 2, Men 4 Total Efficiency of (B+W+M) 1+2+4 7 Total Work 7 x 7 49


  6. 13. A man is twice as fast as women and a women is twice fast as a boy in doing a work. If all of them together can finish the work in 7 days, a boy will do it alone in: Let Efficiency of Boy 1, then women 2, Men 4 Total Efficiency of (B+W+M) = 1+2+4 = 7 Total Work 7 x 7 49 49 Days needed by Boy 49 days


  7. 14. A, B and C can do a work in 5, 10 and 15 days respectively. They started to do work together but A & B left after two days. C did the remaining work in hovw many days?


  8. 14. A, B and C can do a work in 5, 10 and 15 days respectively. They started to do work together but A & B left after two days. C did the remaining work in how many days? B10330 (LCM) C 15


  9. 14. A, B and C can do a work in 5, 10 and 15 days respectively. They started to do work together but A & B left after two days. C did the remaining work in how many days? B 1030 (LCM) C 15 Total Efficiency A+B+C 6+3+2 11 Work done by (A+B+C) in 2 days-2 11 22


  10. 14. A, B and C can do a work in 5, 10 and 15 days respectively. They started to do work together but A & B left after two days. C did the remaining work in how many days? B 10 330 (LCM) C 15 Total Efficiency A+B+C 6+3+2 11 Work done by (A+B+C) in 2 days 2 x 11 - 22 Remaining Work 30 22 8 Days needed by C to finish remaining Work-4 days


  11. 15. A can do a piece of work in 25 days and B can do the same work in 30 days. They work together for 5 days and then A leaves. B will finish the remaining work in A 25 6 150 ( LCM) B30 5


  12. 15. A can do a piece of work in 25 days and B can do the same work in 30 days. They work together for 5 days and then A leaves. B will finish the remaining work in A 25 6 B 30 Work done together for 5 days 11 5 55 Remaining Work 150 55 95 150 (LCM) 95 Days needed by B-19 days