A person X is twice as good a workman as a person Y. By joining together, they complete a job in 18 days. Find the number of days the person X as well as Y can complete the job, respectively, if each of them works separately.

This question was previously asked in
UGC NET Paper 1: Held on 3rd Mar 2023 Shift 2
View all UGC NET Papers >
  1. (27, 54)
  2. (18, 36)
  3. (21, 42)
  4. (23, 46)

Answer (Detailed Solution Below)

Option 1 : (27, 54)
Free
UGC NET Paper 1: Held on 21st August 2024 Shift 1
10.8 K Users
50 Questions 100 Marks 60 Mins

Detailed Solution

Download Solution PDF

Calculation:

Efficiency of person X : Y = 2 : 1

So, total work = (2 + 1)× 18 = 54 unit

Now, X alone can do the job in 54/2 = 27 days and Y alone can do it 54/1 = 54 days

∴ The correct answer is option 1

Latest UGC NET Updates

Last updated on Jun 12, 2025

-> The UGC NET June 2025 exam will be conducted from 25th to 29th June 2025.

-> The UGC-NET exam takes place for 85 subjects, to determine the eligibility for 'Junior Research Fellowship’ and ‘Assistant Professor’ posts, as well as for PhD. admissions.

-> The exam is conducted bi-annually - in June and December cycles.

-> The exam comprises two papers - Paper I and Paper II. Paper I consists of 50 questions and Paper II consists of 100 questions. 

-> The candidates who are preparing for the exam can check the UGC NET Previous Year Papers and UGC NET Test Series to boost their preparations.

More Work Efficiency Questions

More Time and Work Questions

Get Free Access Now
Hot Links: teen patti apk teen patti star login teen patti master gold apk teen patti wala game teen patti yes