Number System – Exercise 1.4 – Class IX

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

Solution:

Note that, the given number lies between 3 and 4 on the number line.

Number System – Exercise 1.4 – Class IX

Magnify the interval between 3 and 4 and divide it into 10 equal parts.

Number System – Exercise 1.4 – Class IX

The given number lies between 3.67 and 3.68 on the number line.

Number System – Exercise 1.4 – Class IX

Magnify the interval between 3.76 and 3.77 and divide it into 10 equal parts.

Number System – Exercise 1.4 – Class IX

3.675 is the fifth division in this magnification on the number line.


  1. Visualize 4.2626… on the number line, up to 4 decimal places

Solution:

Note that, the given number lies between 4 and 5 on the number line.[Up to 4 decimal places i.e, 4.2626]

Number System – Exercise 1.4 – Class IX

Magnify the interval between 4 and 5 and divide it into 10 equal parts.

 

The given number lies between 4.2 and 4.3 on the number line.

Number System – Exercise 1.4 – Class IX

Magnify the interval between 4.26 and 4.27 and divide it into 10 equal parts.

Number System – Exercise 1.4 – Class IX

The given number lies between 4.262 and 4.263

Number System – Exercise 1.4 – Class IX

Magnify the interval between 4.262 and 4.263 and divide it into 10 equal parts.

Number System – Exercise 1.4 – Class IX

4.2626 is the sixth division in this magnification on the number line

 

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