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August 11, 2023
On this page we will discuss about Shortcut Tips and Tricks about Time and work.
Tips and tricks of the Work and Time questions to Understand the relation between Man, work, and Time.
Type 1: Calculate time taken or work completed by one, two or more workersQuestion 1. Soumya can do a piece of work in 50 days. How much part of the work she can do in 20 days?
Options:
A. \frac{1}{5}
B. \frac{3}{8}
C. \frac{2}{5}
D. \frac{1}{4}
Solution: 1 day work of Somya = \frac{1}{50}
Therefore, in 20 days she can do 20 × \frac{1}{50} = \frac{20}{50} = (\frac{2}{5})^{th} part of the work.
Correct option: C
Type 2: Tips and Tricks and Shortcuts for Work and Time to Calculate time/work when efficiency is given in percentageQuestion 1. Positive efficiency of a Neha is 5%. Negative efficiency of Shreya is 2.5%. Find out the net efficiency.
A. 2.5 %
B. -2 %
C. 1.2 %
D. 2.5 %
Solution: Positive efficiency = 5%
Negative efficiency = 2.5%
Therefore the Net efficiency = (5 – 2.5) = 2.5%
Correct option: A
Type 3: Calculate time/work when workers leave in betweenQuestion 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?
A. 50 days
B. 10 days
C. 60 days
D. 45 days
Solution: Karan’s 1 day work = \frac{1}{50}.
Work done by Karan in 15 days = 15 × \frac{1}{50} = \frac{3}{10}
Therefore, remaining work = 1 – \frac{3}{10} = \frac{7}{10}
Tarun finishes this remaining \frac{7}{10} work in 35 days.
Therefore, Tarun can finish the work in \frac{35}{\frac{7}{10}} = 50
Type 4: Work and Time Tips and Tricks and Shortcuts- Share of salary based on workQuestion 1. Hetal’s one day work is \frac{1}{20} and Avnika’s one day work is \frac{1}{30} 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?
A. Rs. 833.33
B. Rs. 800
C. Rs.235
D. Rs. 338.3
Solution: Hetal’s total work done = \frac{10}{20} = \frac{1}{2}
Avnika’s total work = \frac{10}{30} = \frac{1}{3}
The work together completed in \frac{1}{2} + \frac{1}{3} = \frac{5}{6}
Remaining work = 1 – \frac{5}{6} = \frac{1}{6}
Therefore, Yasha’s share = 5000 × \frac{1}{6} = \frac{5000}{6} = Rs 833.33
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Very nice
great