Time and Work Examples 3


Shortcut tricks on time and work are one of the most important topics in exams. Time takes a huge part in competitive exams. If you know time management then everything will be easier for you. Most of us skip that part. Few examples on time and work shortcuts is given in this page below. These shortcut tricks cover all sorts of tricks on Time and Work. We request all visitors to read all examples carefully. You can understand shortcut tricks on Time and Work by these examples.

Before doing anything we recommend you to do a math practice set. Then find out twenty math problems related to this topic and write those on a paper. Do first ten maths using basic formula of this math topic. You also need to keep track of the time. After solving all ten math questions write down total time taken by you to solve those questions. Now go through our page for time and work shortcut trick. After doing this go back to the remaining ten questions and solve those using shortcut methods. Again keep track of timing. You will surely see the improvement in your timing this time. But this is not all you need. You need more practice to improve your timing more.

You all know that math portion is very much important in competitive exams. That doesn’t mean that other sections are not so important. But only math portion can leads you to a good score. You can get good score only by practicing more and more. You should do your math problems within time with correctness, and you can do this only by using shortcut tricks. Again it does not mean that you can’t do maths without using shortcut tricks. You may have that potential to do maths within time without using any shortcut tricks. But so many other people may not do the same. Here we prepared time and work shortcut tricks for those people. We always try to put all shortcut methods of the given topic. But we may miss few of them. If you know anything else rather than this please do share with us. Your little help will help so many needy.

Time and Work Examples 3
Some important facts are needed for Time and work Problems. If a person do a piece of work which has to be require more time to complete and capacity is limited to that person but two or more person do the same piece of work which require less time and effort is minimum.

This examples is two person work a piece of work in same time and find out single person work to complete. So here is some example 3 of this chapter related which help you better study for job preparation.

This type of problem are given in Quantitative Aptitude which is a very essential paper in banking exam. Under below  given some more example for your better practice.

 

 


Example #1
4 boys can complete a piece of work in 16 days. While 8 girls take 12 days to complete that work. How many days will 4 boys and 6 girls together take to complete the work?

  1. 8 Days
  2. 10 Days
  3. 13 Days
  4. 16 Days

Show Answer Show How to Solve Open Rough Workspace

Answer: Option (A)
How to Solve
Required time for 6 girls to complete the work
8 x 12 = 6 x ?
? = 16 days.

4 boys complete the work in 16 days
So, 4 boys one day work is 1 / 16.

6 girls complete the work in 16 days
So, 6 girls one day work is 1 / 16.

So, time required by 4 boys an 6 girls to complete that work is
= (1 / 16) + (1 / 16)
= 8 days.

Rough Workspace

Example #2
A women can do a job in 10 days. Her mother do it in 12 days and her son complete it in 15 days. How long it takes to complete if they work together?

  1. 3 Days
  2. 4 Days
  3. 6 Days
  4. 9 Days

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Answer: Option (B)
How to Solve
Women’s 1 day work = 1 / 10
Mother’s 1 day work = 1 / 12
Son’s 1 day work = 1 / 15

So, time required to do the job if they work together is
(1 / 10) + (1 / 12) + (1 / 15)
= 15 / 60
= 1 / 4

So, it takes to complete the work together is 4 days.

Rough Workspace

Example #3
Rahul can complete a job in 16 days and Manish can complete the equal job in 18 days. For some reason Manish work for 9 days and left the job. Now in how many days Rahul can complete the remaining job?

  1. 5 Days
  2. 6 Days
  3. 7 Days
  4. 8 Days

Show Answer Show How to Solve Open Rough Workspace

Answer: Option (D)
How to Solve
Manish’s work in 9 days is ( 1 / 18 X 9 ) = 1 / 2.
So, remaining work is ( 1 – 1 / 2 ) = 1 / 2.

Now, Rahul complete the remaining work in (1 / 16) X 2
= 1 / 8
= 8 days.

Rough Workspace

Example #4
6 women alone can complete a piece of work in 10 days. Whereas 10 children alone take 15 days to complete the same piece of work. How many days will 6 women and 10 children together take to complete the work?

  1. 4 Days
  2. 6 Days
  3. 8 Days
  4. 9 Days

Show Answer Show How to Solve Open Rough Workspace

Answer: Option (B)
How to Solve
6 women do that work in 10 days and 10 children done it in 15 days.
1 day’s work of 6 women is 1 / 10
1 day’s work of 10 children is 1 / 15

So, together they will do in 1 day is
= (1 / 10) + (1 / 15)
= 5 / 30
= 1 / 6

So, 6 women and 10 children together will complete the work in 6 days.

Rough Workspace

Example #5
15 men can do a piece of work in 40 days. Then in how many days can 10 men complete double of the work?

  1. 80 Days
  2. 100 Days
  3. 110 Days
  4. 120 Days

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Answer: Option (D)
How to Solve
10 men can do the same work in
15 x 40 = 10 x ?
? = (15 x 40) / 10
? = 60

So, to do double the work, 10 men will require 60 x 2 = 120 days.

Rough Workspace

Example #6
Three person Amit, Bikash and Chandan complete a work in 40 minutes. Amit and Bikash can complete the same work in 60 minutes. Find the time required for Chandan alone to complete that work?

  1. 120 Minutes
  2. 130 Minutes
  3. 140 Minutes
  4. 155 Minutes

Show Answer Show How to Solve Open Rough Workspace

Answer: Option (A)
How to Solve
Amit + Bikash + Chandan 1 day work = 1 / 40
Amit + Bikash 1 day work = 1 / 60

So, time required for Chandan alone is
(1 / 40) – (1 / 60)
= (3 – 2) / 120
= 1 / 120

So, Chandan alone can complete that work in 120 minutes.

Rough Workspace

Few examples of Time and Work with Shortcut Tricks

 

We provide few shortcut tricks on this topic. Please visit this page to get updates on more Math Shortcut Tricks. You can also like our facebook page to get updates.

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7 comments

  1. nilufa ancer says:

    If 10 men or 20 women or 40 children can do a work in 7 months, then what is the required time to do the half of the work by 5 men,5 women and 5 children

    • Ajeet says:

      Ratio is 4:2:1
      And here total work is 210 ×7=1470
      But here asking half work so, 735
      Therefore,
      5m+5w+5c=35
      So total time =21 days answer

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