Loading...

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
All in this Category

You may be interested in

Colleges in cities of Sindh

Comprehensive lists of colleges in ...

Colleges in Peshawar

Find a comprehensive list of major ...

Study Australia - Vocational Education

Get vocational education in some re ...

Precis Writing

How to write Precis with solved exa ...

The Educators Wah Campus

A campus in Wah of a large chain of ...

Schools in Burewala

A comprehensive list of popular sch ...

Schools in West Hampstead

Find a comprehensive list of major ...

Schools in Halstead

Find the popular schools in Halstea ...

Pakistan Penal Code ACT 1860

How to prepare the legal section - ...

Islamic Hudood Laws 1979

Prepare Islamic Hudood Laws 1979 ob ...