P and Q together complete a job in  days. R and S complete the same job in  days. If P, Q, R and S work together, how many days do they need to complete the same job?

This question was previously asked in
SSC CGL 2023 Tier-I Official Paper (Held On: 25 Jul 2023 Shift 2)
View all SSC CGL Papers >

Answer (Detailed Solution Below)

Option 4 :
super-pass-live
Free
SSC CGL Tier 1 2025 Full Test - 01
100 Qs. 200 Marks 60 Mins

Detailed Solution

Download Solution PDF

Given:

(P + Q) complete a job = 4 = 22/5

(R + S) complete a job = 4 = 44/9

Formula used:

Total work = efficiency × time

Calculation:

Efficiency Person Time Total work
10 (P + Q) 22/5 44
9 (R + S) 44/9

Now,

Total time taken by P, Q, R, and S together to complete the work:

⇒ 44/19 = 2 days

∴ The correct answer is 2 days.

Latest SSC CGL Updates

Last updated on Jul 8, 2025

-> The SSC CGL Notification 2025 for the Combined Graduate Level Examination has been officially released on the SSC's new portal – www.ssc.gov.in.

-> This year, the Staff Selection Commission (SSC) has announced approximately 14,582 vacancies for various Group B and C posts across government departments.

-> The SSC CGL Tier 1 exam is scheduled to take place from 13th to 30th August 2025.

->  Aspirants should visit ssc.gov.in 2025 regularly for updates and ensure timely submission of the CGL exam form.

-> Candidates can refer to the CGL syllabus for a better understanding of the exam structure and pattern.

-> The CGL Eligibility is a bachelor’s degree in any discipline.

-> Candidates selected through the SSC CGL exam will receive an attractive salary. Learn more about the SSC CGL Salary Structure.

-> Attempt SSC CGL Free English Mock Test and SSC CGL Current Affairs Mock Test.

-> The CSIR NET Exam Schedule 2025 has been released on its official website.

More Work Efficiency Questions

More Time and Work Questions

Hot Links: teen patti boss all teen patti game teen patti all games teen patti game