Chain Rule

Practice MCQ with Solutions

Video Lesson on Chain Rule

Chain rule is commonly applied in Ratios and proportions questions when more than two ratios are inter-related.

Points to Remember

1) Direct Proportion:

Any two quantities are said to be directly proportional, if on the increase of one quantity, the other quantity increases and vice-versa.

  • Example: Cost is directly proportional to number of objects
    Cost ? Number of objects
    Number of objects increases (↑) Cost (↑)
  • Example: Work done is directly proportional to number of working men
    Work done ? Number of working men
    Number of men increase (↑) Work done (↑)

2) Indirect Proportion:

Any two quantities are said to be indirectly proportional, if on the increase of one quantity, the other quantity decreases and vice-versa.

  • Example: If speed of car is increases, then the time required to cover the distance decreases.
    Speed of car (↑) Time required decreases (↓)
  • Example: Time taken to finish work increases, if number of men decrease.
    Time (↑) Number of men (↓)

Tips and Tricks

In this chapter generally different types of numerical related to time and work, time and speed, cost and number of articles, men and work, etc. are asked.

Topics

More for You
MCQ with question Explanations Scholarships and Financial Aid

PAF - Cadet Wing

Join Pakistan Air Force as a Cadet. Learn all about joining

GRE: Graduate Record Examination

Know what is GRE - Geeneral test and how you can take it easily

GRE General Preparation

Prepare GRE General paper-base and online

All in this Category

You may be interested in

MA Jinnah Group Of Colleges - Faisalabad

A big name in colleges in Faisalaba ...

Colleges in Sahiwal

A comprehensive list of major colle ...

Compititive Exam Preparation Books

A list of Books for Compititive Exa ...

Admissions News and Info

Have current admission news and inf ...

The Read Public Higher Secondary School

A big name in colleges in Mianchann ...

Dar E Arqam School Umar Campus

Dar E Arqam School Umar Campus is a ...

Schools in Barnet

List of schools in Barnet of Englan ...

Schools in Sandy

Find a comprehensive list of major ...

Number Series

How to crack Number Series section ...

What you need on Analytical Reasoning?

Know what you need to solve Analyti ...

About us

EntryTest.com is a test preparation service for students seeking successful career.

About Disclaimer

Quick Test Prep

NUST NET IBA Karachi SAT LUMS LCAT LSE

 

NTS GAT NTS NAT GMAT GRE ACT

Study Abroad

Education Abroad Business Schools MS in USA