NCERT Solutions for Class 9 Maths Chapter 1: Number System

CBSE Class 9 MLQB

NCERT Solutions for Class 9 Maths Chapter 1 (Number System) PDF Download helps students understand core mathematical concepts clearly. This chapter explains the Number System Class 9th in a step-by-step way using easy language and direct examples. Each Class 9 Maths Chapter 1 question answer is solved as per the latest NCERT guidelines.

These NCERT Solutions for Class 9 Maths Chapter 1 cover all the important topics such as rational numbers, irrational numbers, real numbers, and their properties. With these resources, students can revise Class 9 Maths Number System question answer quickly and improve their accuracy.

You can also practice Number System class 9 questions and answers regularly to build a strong base for higher-level maths. Download the NCERT Solutions for Class 9 Maths Chapter 1 PDF and start preparing smartly. Clear concepts lead to better marks.

NCERT Solutions for Class 9 Mathematics Chapter 1 Free PDF Download

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    Chapter: 1

    Q. If x/y+y/x=-1 where x, y ≠ 0, then the value of x3 – y3 is ................... .

    • Ans. x3 – y3 = 0.
    Q. If a + b + c = 0, then a3 + b3 + c3 is ................... .
    Ans. a3 + b3 + c3 = 3abc.
    Q. If the volume of a cuboid is 3x2 – 12, then find its possible dimensions.
    Ans. Given, Volume of cuboid
    = 3x2 – 12
    = 3 (x2 – 4)
    = 3(x – 2) (x + 2)
    Possible dimensions are 3, (x – 2) and (x + 2) units where x >2.

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