NCERT Solutions for Class 9 Maths Chapter 1 Number Systems (Ex 1.4) Exercise 1.4


NCERT Solutions for Class 9 Chapter 1 Number Systems -Free PDF Download

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Maths Revision Notes for Class 9

Chapter NameNumber Systems
ChapterChapter 1
ExerciseExercise 1.4
ClassClass 9
SubjectMaths NCERT Solutions
BoardCBSE
TEXTBOOKCBSE NCERT
CategoryNCERT Solutions


CBSE Class 9 Mathematics
NCERT Solutions
CHAPTER 1
Number Systems(Ex. 1.4)


1. Visualize 3.765 on the number line using successive magnification.

Ans. We know that the number 3.765 will lie between 3.764 and 3.766.

We know that the numbers 3.764 and 3.766 will lie between 3.76 and 3.77.

We know that the numbers 3.76 and 3.77 will lie between 3.7 and 3.8.

We know that the numbers 3.7 and 3.8 will lie between 3 and 4.

Therefore, we can conclude that we need to use the successive magnification, after locating numbers 3 and 4 on the number line.


2. Visualizeon the number line, up to 4 decimal places.

Ans. We know that the numbercan also be written as.

We know that the numberwill lie between 4.261 and 4.263.

We know that the numbers 4.261 and 4.263 will lie between 4.26 and 4.27.

We know that the numbers 4.26 and 4.27 will lie between 4.2 and 4.3.

We know that the numbers 4.2 and 4.3 will lie between 4 and 5.

Therefore, we can conclude that we need to use the successive magnification, after locating numbers 4 and 5 on the number line.