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 Sialkot

A list of major colleges in the cit ...

Colleges in Multan

A comprehensive list of best colleg ...

Effective Cover Letter

Learn how to write Effective cover ...

Merits in Pakistan

Calculate merit for any university ...

Schools in cities of Punjab

Schools in major cities of punjab. ...

Schools in cities of Balochistan

Schools in cities of Balochistan. F ...

Schools in Basildon

Find a comprehensive list of major ...

Schools in Benfleet

Find a comprehensive list of major ...

Chemistry for Test Preparation

Lessons with Practice questions -MC ...

Islamic Hudood Laws 1979

Prepare Islamic Hudood Laws 1979 ob ...