Question
Download Solution PDFRaja and Rocky together can complete painting work In 5 days. Together they both start painting, but after 2 days, Rocky falls sick and leaves the work. If Raja completes the remaining painting in 4 days, find the number of days in which Rocky alone can do the work.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
(Raja + Rocky) can complete painting work = 5 days
Formula used:
Total work = efficiency × time
Calculation:
According to the question:
⇒ (Raja + Rocky) × 2 + Raja × 4 = (Raja + Rocky) × 5
⇒ Raja × 4 = (Raja + Rocky) × 3
⇒ Raja × 1 = Rocky × 3
⇒ Raja/Rocky = 3/1
Total work = (Raja + Rocky) × 5
⇒ (3 + 1) × 5 = 4 × 5
⇒ 20 units
Time taken by Rocky alone to complete the painting work = 20/1 = 20 days
∴ The correct answer is 20 days.
Last updated on Jun 25, 2025
-> The SSC CGL Notification 2025 has been released on 9th June 2025 on the official website at ssc.gov.in.
-> The SSC CGL exam registration process is now open and will continue till 4th July 2025, so candidates must fill out the SSC CGL Application Form 2025 before the deadline.
-> 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.
-> Candidates should also use the SSC CGL previous year papers for a good revision.
->The UGC NET Exam Analysis 2025 for June 25 is out for Shift 1.