SSC CGL level Question Set 48, Time and work problems in simpler steps 3 | SureSolv

SSC CGL level Question Set 48, Time and work problems in simpler steps 3

48th SSC CGL level Question Set, 3rd on Time and Work problems in simpler steps

SSC CGL question set 48 time work3

This is the 48th question set of 10 practice problem exercise for SSC CGL exam and 3rd on Time and Work in simpler steps. Students must complete this question set in prescribed time first and then only refer to the corresponding solution set for extracting maximum benefits from this resource.

In MCQ test, you need to deduce the answer in shortest possible time and select the right choice.

Based on our analysis and experience we have seen that, for accurate and quick answering, the student

  • must have complete understanding of the basic concepts in the topic area
  • is adequately fast in mental math calculation
  • should try to solve each problem using the basic and rich concepts in the specific topic area and
  • does most of the deductive reasoning and calculation in his or her head rather than on paper.

Actual problem solving is done in the fourth layer. You need to use your problem solving abilities to gain an edge in competition.

Before taking the test you should go through our sessions on How to solve Time and work problems in simpler steps type-1 and How to solve more time and work problems in simpler steps type-2 for detailed explanation of the two high power techniques that will help you to solve any Time and Work problem quickly and easily compared to conventional methods.

48th question set- 10 problems for SSC CGL exam: 3rd on Time and Work in simpler steps - time 15 mins

Problem 1.

A alone can do a job in 6 days and B alone in 8 days, each working 7 hours a day. If they work together for 8 hours a day, how many days would they take to complete the job?

  1. 4 days
  2. 3 days
  3. 3.6 days
  4. 3.5 days

Problem 2.

Ravi and Bittu are working on an assignment. Ravi takes 6 hours to type 32 pages while Bittu takes 5 hours to type 40 pages. How long would they take to complete the typing assignment totaling 110 pages if they work on two separate typing machines?

  1. 7 hours 30 minutes
  2. 8 hours 25 minutes
  3. 8 hours
  4. 8 hours 15 minutes

Problem 3.

A can do as much work as B and C together can do. A and B together can do a job in 9 hours 36 minutes and C can do it in 48 hours. In how much time (in hours) would B do the job working alone?

  1. 24
  2. 18
  3. 30
  4. 12

Problem 4.

A can do a job in 12 days and B in 15 days. They work together for 5 days and then B leaves. The days taken by A to finish the remaining part of the job is,

  1. 5
  2. 3
  3. 10
  4. 12

Problem 5.

A can do a piece of work in 8 days which B can destroy in 3 days. A has worked for 6 days during the last two days of which B has been destroying the work. How many days A must work alone to complete the job?

  1. $8$
  2. $7\frac{1}{3}$
  3. $7$
  4. $7\frac{2}{3}$

Problem 6.

8 men can do a work in 12 days. After 6 days of work, 4 more men were engaged to finish the job. In how many days would the remaining work be completed?

  1. 5
  2. 3
  3. 4
  4. 2

Problem 7.

A, B and C can complete a work in 10, 12 and 15 days respectively. A left the work 5 days before the work was completed and B left 2 days after A had left. Number of days required to complete the whole work is,

  1. $8\frac{2}{3}$
  2. $6$
  3. $7$
  4. $6\frac{2}{3}$

Problem 8.

A can do a piece of work in 25 days and B can do the same work in 30 days. They work together for 5 days after which how much work would be left?

  1. $\displaystyle\frac{11}{30}$
  2. $\displaystyle\frac{12}{30}$
  3. $\displaystyle\frac{19}{30}$
  4. $\displaystyle\frac{1}{2}$

Problem 9.

A's 2 days' work is equal to B's 3 days' work. If A can complete the work in 8 days, then to complete the work B will take,

  1. 16 days
  2. 14 days
  3. 15 days
  4. 12 days

Problem 10.

A and B can do a piece of work in 20 days and 12 days respectively. A started the work alone and then after 4 days B joined to work together till the completion of the work. How long did the work last?

  1. 10 days
  2. 20 days
  3. 6 days
  4. 15 days

Note: For efficient solution to time and work problems clear understanding of four concepts, namely, Work rate concept, Working together concept, Time and work proportionality concept and Mandays concept and their uses should prove to be invaluable.


Answers to Questions

Problem 1. Answer: b: 3 days.

Problem 2. Answer: Option d : 8 hours 15 minutes.

Problem 3. Answer: Option a: 24.

Problem 4. Answer: b: 3.

Problem 5. Answer: Option b: $7\frac{1}{3}$.

Problem 6. Answer: Option c : 4.

Problem 7. Answer: Option c: $7$.

Problem 8. Answer: Option c: $\displaystyle\frac{19}{30}$.

Problem 9. Answer: Option d: 12 days.

Problem 10. Answer: Option a: 10 days.


Useful resources to refer to

Guidelines, Tutorials and Quick methods to solve Work Time problems

7 steps for sure success in SSC CGL Tier 1 and Tier 2 competitive tests

How to solve Arithmetic problems on Work-time, Work-wages and Pipes-cisterns

Basic concepts on Arithmetic problems on Speed-time-distance Train-running Boat-rivers

How to solve a hard CAT level Time and Work problem in a few confident steps 3

How to solve a hard CAT level Time and Work problem in a few confident steps 2

How to solve a hard CAT level Time and Work problem in few confident steps 1

How to solve Work-time problems in simpler steps type 1

How to solve Work-time problem in simpler steps type 2

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