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Time & Work - Part 6 (in Malayalam)
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Lesson 6 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 leaving and joining, wage division 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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Unacademy user
sir please make video on how to remember so many subjects
Rupanzil Prince
2 years ago
see...proper and smart revision is the only way...ok l will share my method for revision in a separate course
Vinay Sharma
2 years ago
thank u sir please make it early as possible....
Rupanzil Prince
2 years ago
sure..
sir please help me to solve dis. 10 men and 15 women together can compleate a work in 6 days. it takes 100 days for a man alone to compleate the same work then how many days will require for one women to compleate the days. eagerly waiting sir..
Ismaiel Kalady
8 months ago
Such problems are solved in the course. You can post in discussion groups in telegram
Ismaiel Kalady
8 months ago
10 m = 15 w find m/w ratio. Find total work. and follow the steps as mentioned
Anjana Ragesh
8 months ago
ok thank you sir
superrrrr thanks alot sir
Very detailed explanation . thankyou so much Sir!
super thank you sir
Sir enike 16th question il " Full work by (A+B) = 15 days " ithe enike manslayilla sir ... Please onne idil comment cheyde paraje taravo sir.....
Ismaiel Kalady
a year ago
1/5 of Work is done by A & B in 3 days.. so total work is done by A & B in 3*5 = 15 days. 1 unit = 3 we need 5 units = 15
Vineeth g
a year ago
Thanku sir
  1. TIME & WORK LCM - Efficiency Shortcut Tricks 6 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. 16. A does 4/5 of a piece of work in 20 days; then he calls B and they finish the remaining work in 3 days. How long B alone will take to do whole work?


  4. 16. A does 4/5 of a piece of work in 20 days; then he calls B and they finish the remaining work in 3 days. How long B alone will take to do whole work? 4/5 Work done in 20 days, Full work is done by A in 25 days


  5. 16. A does 4/5 of a piece of work in 20 days; then he calls B and they finish the remaining work in 3 days. How long B alone will take to do whole work? 4/5 Work done in 20 days, Full work is done by A in 25 days 1/5 of Work done by (A+B) in 3 days, Full work by (A+B) 15 days LCM 75, Efficiency of A 3, Efficiency of (A+B) 5


  6. 16. A does 4/5 of a piece of work in 20 days; then he calls B and they finish the remaining work in 3 days. How long B alone will take to do whole work? 4/5 Work done in 20 days, Full work is done by A in 25 days 1/5 of Work done by (A+B) in 3 days, Full work by (A+B) 15 days LCM 75, Efficiency of A 3, Efficiency of (A+B) 5 Efficiency of B 5-3 2 Days needed by B- 75/2 - 371 days


  7. 17. A can finish a piece of work in 18 days and B can do the same work in 15 days, B worked for 10 days and left the job. In how many days, A alone can finish the remaining work?


  8. 17. A can finish a piece of work in 18 days and B can do the same work in 15 days, B worked for 10 days and left the job. In how many days, A alone can finish the remaining work? A 18 90 ( LCM) B 156


  9. 17. A can finish a piece of work in 18 days and B can do the same work in 15 days, B worked for 10 days and left the job. In how many days, A alone can finish the remaining work? A 7 18 90 ( LCM) B156 work done by B in 10 days-10 Remaining Work 90-60 30 6 60


  10. 17. A can finish a piece of work in 18 days and B can do the same work in 15 days, B worked for 10 days and left the job. In how many days, A alone can finish the remaining work? A -18 90 ( LCM) 6 Work done by B in 10 days 10 x 6 60 Remaining Work - 90- 60-30 30 Days needed by A to do the remaining work 6 days 5


  11. 18. A and B can complete a piece of work in 15 days and 10 days respectively. They contracted to complete the work for Rs.30,000. The share of A in the contracted money will be: A15 30 (LCM) B 10 3


  12. 18. A and B can complete a piece of work in 15 days and 10 days respectively. They contracted to complete the work for Rs.30,000. The share of A in the contracted money will be: A15 30 ( LCM) B 10 3 Ratio of Efficiency 2:3 Total amount 5 units 30,000 So, Share of A 2 units 12,000