24 Views

Question : P takes twice as long as Q, or three times as long as R, to complete a task. If they work together, they can complete the task in two days. How long will it take Q to complete the task on his own?

Option 1: 8 days

Option 2: 6 days

Option 3: 5 days

Option 4: 7 days


Team Careers360 16th Jan, 2024
Answer (1)
Team Careers360 17th Jan, 2024

Correct Answer: 6 days


Solution : Given: Q is twice as efficient as P and R is thrice as efficient as P.
If P does 1 unit of work per day, then Q will do 2 units per day, and R will do 3 units per day.
Now, work done by them in one day = (P + Q + R) = 6 units
Since they complete the task in 2 days, the total work = 2 × 6 = 12 units
So, Q alone will complete the task in $\frac{12}{2}$ days = $6$ days
Hence, the correct answer is 6 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