## Ismaiel Kalady is teaching live on Unacademy Plus

TIME & WORK LCM - Efficiency Shortcut Tricks 2 20 QUESTIONS unacademy

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

4. A can do a piece of work in 12 days and B can do the same work in 24 days. How much time will they take if both work together?

4. A can do a piece of work in 12 days and B can do the same work in 24 days. How much time will they take if both work together? Equation Method AB A+B 12 24 12+24 12 24 36 24 -8 days 3

4. A can do a piece of work in 12 days and B can do the same work in 24 days. How much time will they take if both work together? A 12 B 24 LCM 24 (Total Work)

4. A can do a piece of work in 12 days and B can do the same work in 24 days. How much time will they take if both work together? A 12 24 LCM 24 (Total Work) Efficiency of A2 units Efficiency of B241 units

4. A can do a piece of work in 12 days and B can do the same work in 24 days. How much time will they take if both work together? A 12 B 24 LCM 24 (Total Work) Efficiency of A2 units Efficiency of B241 units Total Efficiency of A+B 2+1 3 units Days needed by (A+B) 24-8 days 3

5. A can do a piece of work in 10 days and B alone can do it in 15 days. How much time will both take to finish the work?

5. A can do a piece of work in 10 days and B alone can do it in 15 days. How much time will both take to finish the work? A - 103 30 ( LCM)

5. A can do a piece of work in 10 days and B alone can do it in 15 days. How much time will both take to finish the work? A - 103 30 ( LCM) Total Efficiency of A + B 3+2 5 units 30 Days needed by (A+B)6 days

6. A and B together can do a piece of work in 12 days. B alone can finish it in 30 days. In how many days can A alone finish the work? A B - 12 60 ( LCM) B-30

6. A and B together can do a piece of work in 12 days. B alone can finish it in 30 days. In how many days can A alone finish the work? A B - 12 B-30 Efficiency of A A+B-B 5-2 3 units Days needed by A 20 days 60 ( LCM) 60