SATHEE: Quantitative Aptitude Ques 623

Quantitative Aptitude Ques 623

Question: A and B together can complete a work in 15 days. A is 50% more efficient worker than B. How long will A take to complete the work alone?

Options:

A) 20 days

B) 21 days

C) 21.4 days

D) 25 days

Show Answer

Answer:

Correct Answer: D

Solution:

Let B can do the work in x days. Then, A can do the work $ \frac{2x}{3}days. $ in

$ \therefore $ $ \frac{1}{x}+\frac{3}{2x}=\frac{1}{15} $

$ \Rightarrow $ $ \frac{5}{2x}=\frac{1}{15} $
$ \Rightarrow $ $ x=\frac{75}{2} $ Hence, time taken by $ A=\frac{2}{3}\times \frac{75}{2}=25days $

BETA

Privacy Policy

Powered by Prutor@IITK

sathee@iitk.ac.in

Media coverage of SATHEE

Play Store

App Store

The Ministry of Education has launched the SATHEE initiative in association with IIT Kanpur to provide free guidance for competitive exams. SATHEE offers a range of resources, including reference video lectures, mock tests, and other resources to support your preparation. Please note that participation in the SATHEE program does not guarantee clearing any exam or admission to any institute.

Quantitative Aptitude Ques 623

Question: A and B together can complete a work in 15 days. A is 50% more efficient worker than B. How long will A take to complete the work alone?

Options:

Answer:

Solution:

Bank Preparation

Bank Courses

NCERT Books

Important Resources

Forum