Thursday, 2 April 2026

 


Explore Learning Platforms

Bank Exam Practice Library | Master Learning Hub | Mega Learning Library | General Studies MCQs

Shaktimatha Learning – Complete Preparation Platform

Time & Work Tricks (Efficiency Method) – Bank Exams

Smart Method • Concept Clarity • Fast Solving


Time and work efficiency concept

1. Basic Concept

Work is directly related to time and efficiency.

👉 If A completes work in 10 days:

Efficiency of A = 1/10


2. Important Formula

Work = Efficiency × Time


3. Combined Work

If A takes 10 days, B takes 20 days:

A's work = 1/10
B's work = 1/20

👉 Total work = 1/10 + 1/20 = 3/20

👉 Time = 20/3 days ✔


4. LCM Method (Shortcut)

👉 Take LCM of time:

A = 10 days, B = 20 days
LCM = 20 units

A → 2 units/day
B → 1 unit/day

👉 Total = 3 units/day
👉 Time = 20/3 ✔


5. Example

A can do work in 5 days
B can do in 10 days

👉 A = 2 units/day
👉 B = 1 unit/day
👉 Total = 3 units/day
👉 Time = 10/3 days ✔


6. Common Mistakes

  • Not using LCM ❌
  • Wrong efficiency calculation ❌
  • Confusion in addition ❌

7. Topper Tip

Always use LCM method. It is fastest and easiest.


8. Quick Practice

A = 6 days, B = 3 days

👉 LCM = 6
A = 1 unit/day
B = 2 units/day
👉 Total = 3 units/day
👉 Time = 2 days ✔


No comments:

Post a Comment

Shaktimatha Learning Ultimate Bank Exam Practice Material Complete Library 2026

  Shaktimatha Learning Ultimate Bank Exam Practice Material Series 2026 Complete Quantitative Aptitude Practice Li...