23 Views

Question : A person can do a piece of work in 18 days. He worked at it for 12 days and B finished the remaining work in 8 days. B alone can do the whole work in:

Option 1: 16 days

Option 2: 24 days

Option 3: 28 days

Option 4: 29 days


Team Careers360 6th Jan, 2024
Answer (1)
Team Careers360 7th Jan, 2024

Correct Answer: 24 days


Solution : Given:
A person can do a piece of work in 18 days. He worked at it for 12 days and B finished the remaining work in 8 days.
⇒ In 1 day A can do $\frac{1}{18}$th part of the work
⇒ In 12 days A can do ($\frac{1}{18}$ × 12) = $\frac{2}{3}$th part of the work
Now the remaining work is = (1 – $\frac{2}{3}$) = $\frac{1}{3}$ part
So, B finished $\frac{1}{3}$ part of the work in 8 days.
$\therefore$ B alone can do the whole work in (8 ÷ $\frac{1}{3}$) = (8 × 3) = 24 days
Hence, the correct answer is 24 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