UrbanPro

Take CAT Coaching from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Working together, A and B can do a job in 6 days. B and C can do the same job in 10 days, while C and A can do it in 7.5 days. How long will it take if all A, B and C work together to complete the job?

Asked by Last Modified  

Follow 0
Answer

Please enter your answer

Mathematician

Let total work be 900 units . A + B = 900/6 = 150 unit/day (This is the speed or efficiency of working of A & B together) Similarly , B+C = 90 C + A = 120 adding all three , 2A + 2B + 2C = 360 A + B + C = 180 so A,B & C can do the same job in 900/180 = 5 Days
Comments

MBA/Bank Entrance Test Coaching

If A finishes the work in a days then in one day A does 1/a part of the work. Similarly, B does 1/b and C does 1/c part. IF W is the total work. Then below are per day works W/a + W/b = W/6 W/b + W/c = W/10 W/c + W/a = W/7.5 Adding above equations we get 2(1/a+1/b+1/c) = 1/6+1/10+1/7.5 --- > 1/a + 1/b...
read more
If A finishes the work in a days then in one day A does 1/a part of the work. Similarly, B does 1/b and C does 1/c part. IF W is the total work. Then below are per day works W/a + W/b = W/6 W/b + W/c = W/10 W/c + W/a = W/7.5 Adding above equations we get 2(1/a+1/b+1/c) = 1/6+1/10+1/7.5 --- > 1/a + 1/b + 1/b = 1/5 all three together do 1/5th of work in a day. So, they take 5 days to finish the work. read less
Comments

Related Questions

How to prepare for the new pattern of CAT 2015 ?
Test is online, total 100 question, focus on Verbal, Quant, DI and Reasoning.
Paras

My 10th score is 93.2, 12th is 75.4, and my graduation CGPA is 8.9. Will my low 12th score be a bummer to get admission to top IIMs?

PS. General Male Engineer

Hi Ashish, Although your 12th percentage is lower than the other degree, it is not low enough to create a hindrance to your IIMs Aspiration. You should keep in mind the following points- 1. Give your best...
Ashish
What is cut off of CAT Exam?
100 and 40% per subject is necessary
Rakesh
I can't improve my CAT score above 93 percentile..what do i do?
Talk to someone who improved their score from 90 to 99 %ile.
Harshit
How to start preparing maths for CAT by yourself? I tried and am trying again but not getting things right. What to do?
This is a very broad question. A best approach to start will be to plan where you are and where you want to reach by the end of one week. I would highly recommend picking up one standard book (Rec. R S...
Shivani

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Tricks in Maths
Hi everyone here I am going to solve a fundamental question related to quant the answer of which probably most of you know, but the method is critical that applies to other topics like time and distance,...

C.A Part - 1
All you need to know about US's Mother of All Bombs The United States on April 13, 2017, dropped a massive GBU-43 bomb in eastern Afghanistan against a series of caves used by Islamic State militants....

Company Accounts - Preparation of Financial Statements
What are the Statutory Provisions relating to the Transfer of Profits to Reserves? Answer: As per companies Act, 2013 there is no requirement of minimum transfer of profits to reserves. The company...
F

Permutation and Combination
Fundamental Principle of Counting/Multiplication rule Q1) How many numbers greater than 999 but not greater than 5000 be formed using the digits 0,1,2,3,4 and 5 if (a) repetition of digits is allowed...

SSC CGL PROBABLE QUESTIONS OF NUMBER SYSTEM
Q. Arrange P,Q and R in order : P=223/222*224, Q=224/223*225 R=1/224 in such questions, if you try to solve normally then its difficult to solve in 5 seconds. Whenever you see such type of...

Recommended Articles

Common Admission Test or CAT is an admission test for a management program. This is a graduation course that has three sections: Verbal Ability and Reading Comprehension (VARC), Quantitative Ability (QA) and Data Interpretation and Logical Reasoning (DILR). The CAT syllabus could be covered easily if someone starts practising...

Read full article >

CAT (Common Admission Test) is considered as one of the toughest MBA entrance exams in India. The MBA CAT 2015 Registration will be starting from 6th August, 2015. Aspiring management students should visit the official website - to apply for the test. Every year one of the 19 IIMs conduct the CAT test. This year Indian...

Read full article >

The Common Admission Test or CAT, being one of the toughest tests to crack, is probably the most feared exam in our nation. CAT is now a computer-based online test which has 2 sections: Quantitative Ability & Data Interpretation Verbal Ability & Logical Reasoning Each section comprises of 30 questions and...

Read full article >

CAT is just a couple of days away. It is absolutely normal for any CAT aspirant to panic a few weeks before the day of the exam. However, this is the crucial time when you must be working smartly and not get overwhelmed with the stress. In a previous article, we mentioned how you can optimize your CAT preparation a couple...

Read full article >

Looking for CAT Coaching ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for CAT Coaching Classes?

The best tutors for CAT Coaching Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Take CAT Coaching with the Best Tutors

The best Tutors for CAT Coaching Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more