Tips And Tricks And Shortcut To Solve Work And Time

Work and Time-Tips and Tricks and Shortcuts

Here, are quick and easy tips and tricks for you to solve Work and Time questions quickly, easily, and efficiently in competitive exams.

Tips and tricks to solve the Work and Time questions

  • Understand the relation between Man, work, and Time
  1. More men can do more work. Similarly, less men will do less work
  2. More work takes more time. Similarly, less work takes less time
  3. More man can do work in less time, Similarly, less men can do work in more time

Type 1: Calculate time taken or work completed by one, two or more workers

Question 1.

Somya can do a piece of work in 50 days. How much part of the work she can do in 20 days?

Options:   
A. 1/5
B.3/8
C.2/5
D.1/4

Correct option: C
Solution: 1 day work of Somya = 1/50
Therefore, in 20 days she can do 20 × 1/50 = 20/50 = 2/5th part of the work

Tips and Tricks and Shortcuts for Work and Time

Type 2: Calculate time/work when efficiency is given in percentage

Question 1.

 Positive efficiency of a Neha is 5%. Negative efficiency of Shreya is 2.5%. Find out the net efficiency.

Options:     
A. 2.5 %
B. -2 %
C. 1.2 %
D.-2.5 %

Correct option: A
Solution:
Positive efficiency = 5%
Negative efficiency = 2.5%
Therefore the Net efficiency = (5 – 2.5) = 2.5%

 

Type 3: Calculate time/work when workers leave in between

Question 1.

 Karan can do a piece of work in 50 days. He works for 15 days and then leaves. Tarun comes and finishes the remaining work in 35 days. In how many days Tarun alone can finish the work?

Options:           
A. 50 days
B. 10 days
C. 60 days
D. 45 days

Correct option: A
Solution: Karan’s 1 day work = 1/50.
Work done by Karan in 15 days = 15 * 1/ 50  = 3/10
Therefore, remaining work = 1 – 3/10 = 7/10
Tarun finishes this remaining 7/10 work in 35 days. 
Therefore, Tarun can finish the work in 35/7/10 = 50

 Type 4: Work and Time Tips and Tricks and Shortcuts- Share of salary based on work

Question 1.

Hetal’s one day work is 1/20 and Avnika’s one day work is 1/30 days but with the help of Yasha they finished the work in 10 days. For that work they got total of Rs. 5000. Find the share of Yasha?

Options:
A. Rs. 833.33
B. Rs. 800
C. Rs.235
D. Rs. 338.3

 

Correct option:  A
Solution: Hetal’s total work done = 10/20 = 1/2
Avnika’s total work = 10/30 = 1/3
The work together completed in ½ + 1/3 = 5/6
Remaining work = 1 – 5/6 = 1/6
Therefore, Yasha’s share = 5000*1/6 = 5000/6 = Rs 833.33

Read Also : How to solve work and time questions quickly

work and time tips and tricks and shortcuts