10 Views

Question : Two persons P and Q can do a job together in 36 days. P is 3 times as efficient as Q. In how many days can Q alone complete the work?

Option 1: 148

Option 2: 140

Option 3: 144

Option 4: 146


Team Careers360 15th Jan, 2024
Answer (1)
Team Careers360 18th Jan, 2024

Correct Answer: 144


Solution : Given, P is 3 times as efficient as Q.
Time taken by P and Q to do a job together = 36 days.
Let work done by P and Q in a day be $3x$ and $x$ units respectively.
Now, Total work = Number of days they worked $\times$ Their combined efficiency
= $36 × (3x + x)$
= $144x$ units
Now, time taken by Q to complete the work alone = $\frac{144x}{x}$ = 144 days
Hence, the correct answer is 144 days.

SSC CGL Complete Guide

Candidates can download this ebook to know all about SSC CGL.

Download EBook

Know More About

Related Questions

TOEFL ® Registrations 2024
Apply
Accepted by more than 11,000 universities in over 150 countries worldwide
Manipal Online M.Com Admissions
Apply
Apply for Online M.Com from Manipal University
View All Application Forms

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

150M+ Students
30,000+ Colleges
500+ Exams
1500+ E-books