Time and Work questions PDF

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Time and Work questions PDF

 

RRB JE 2019, SSC CGL 2019, SSC CHSL 2019, RRB NTPC Exams are started after a few months. In those exams, almost  Questions are coming from Maths .so Maths Paper is important in all exams. Common questions are placed in Time and Work questions PDF, which has been put together in most examinations, you can download this PDF Notes very simply by clicking on the Download Button at the bottom.

This post is dedicated to downloading our PDFEXAM for free PDFs, which are the latest exam pattern based Time and Work questions PDF for RRB JE 2019, SSC CGL 2019, SSC CHSL 2019, RRB NTPC, etc.

 

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Importance of Maths:

Every exam you will get almost questions from Math paper. So candidates must focus on Maths  and download these Time and Work questions PDF to get important questions with the best solutions. We have put all Previous Year Questions of Maths that are Asked in various Govt & Private Exam.

Time and work

Time and work simultaneous performance involving the efficiency of an individual or a group and the time taken by them to complete a piece of work.

Image result for time and work

Important formula:-

  • If A can do a piece of work in n days, then A’s one day’s work = 1/n
  • If A’s one day’s work = 1/n, then A can finish the work in n days.
  • If A is thrice as good a workman B, then

The ratio of work done by A and B = 3:1

The ratio of times taken by A and B to finish work = 1:3

  • Total work = No of days * Efficiency.

Work equivalence- 

Pipes and Cisterns Formula-

  • Inlet: A pipe connected with a tank or a cistern or reservoir, that fills it, it is known as an inlet.
  • Outlet: A pipe connected with a tank or a cistern or a reservoir, emptying it, it is known as an outlet.
  • If a pipe can fill a tank in x hours, then the part filled in one hour = 1/x.
  • If a pipe can empty a full tank in y hours, then the part emptied in 1 hour = 1/y.
  • If a pipe can fill a tank in x hours and another pipe can empty the full tank in y hours (where y>x) then on opening both the pipes, the net part filled in one hour = (1/x – 1/y)
  • If a pipe can fill a tank in x hours and another pipe can empty the full tank in y hours (where x>y), then on opening both the pipes, the net part emptied in one hour = (1/y -1/x).

Some Questions from Time and Work-

Q.1.In the beginning, Ram works at a rate such that he can finish a piece of work in 24 hrs, but he only works at this rate for 16 hrs. After that, he works at a rate such that he can do the whole work in 18 hrs. If Ram is to finish this work at a stretch, how many hours will he take to finish this work?

a  12 hrs
b 18 hrs
c 11½ hrs
d  15 hrs
Answer: [d] 

Q.2. A can do a piece of work in 10 days, and B can do the same work in 20 days. With the help of C, they finished the work in 4 days. C can do the work in how many days, working alone?

a. 5 days
b. 10 days
c. 15 days
d. 20 days
Answer: [a] 

Q.3. A can do a piece of work in 12 days. B can do this work in 16 days. A started the work alone. After how many days should B join him, so that the work is finished in 9 days?

a. 2 days
b. 3 days
c. 4 days
d. 5 days
Answer: [d] 

Q.4.A and B can do a piece of work in 4 days, while C and D can do the same work in 12 days. In how many days will A, B, C and D do it together?

a. 12 days
b. 4 days
c. 3 days
d. 2 days
Answer: [c] 

Q.5.A and B can do a piece of work in 40 days, B and C can do it in 120 days. If B alone can do it in 180 days, in how many days will A and C do it together?

a. 45 days
b. 22.5 days
c. 25 days
d. 18 days
Answer: [a] 

Time and Work questions PDF

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