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Revision Notes

Numerical Application

CBSE · Class 11 · Applied Mathematics

Quick revision notes for Numerical Application — CBSE Class 11 Applied Mathematics. Key concepts, formulas, and definitions for last-minute revision.

45 questions24 flashcards5 concepts

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Key Topics to Revise

1

Average and Weighted Average

  • Average represents the central value of a dataset and lies between maximum and minimum values
  • If each observation is increased/decreased by constant N, average changes by same amount
  • If each observation is multiplied/divided by constant N, average changes by same factor
2

Clock and Calendar

  • Hour hand moves 30° per hour, minute hand moves 6° per minute
  • Minute and hour hands collide 22 times in 24 hours (not between 11-12)
  • Collision occurs every 12/11 hours = 65 5/11 minutes
3

Work, Time and Distance

  • Work is directly proportional to time (more time = more work)
  • Speed is inversely proportional to time (more speed = less time)
  • If A completes work in n days, A's one day work = 1/n
4

Mensuration

  • 2D figures have length and breadth only; 3D figures have length, breadth, and height
  • When a solid is melted and reformed, volume remains constant
  • Surface area includes curved surface area and total surface area

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Full Notes

Key Concepts

Average (Mean) = Sum of allClock hands move at specific angularWork is directly proportional to timeDeals with areaLogical arrangement of objects/persons in linear

Frequently Asked Questions

What are the important topics in Numerical Application for CBSE Class 11 Applied Mathematics?
Numerical Application covers several key topics that are frequently asked in CBSE Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Numerical Application — CBSE Class 11 Applied Mathematics?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All 12 chapters — CBSE Class 11 Applied Mathematics Revision Notes

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