###### Question 22 (Textile Engineering & Fibre Science)

The length (km) of 5 kg of 30 Ne yarn (rounded off to the nearest integer) is __**253 to 255**__.

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**Given in the question:**

Weight of yarn=5 kg

=**5000 gm**

Count of yarn=**30 ^{s} Ne**

=590.5/30 tex

=

**19.68 tex**

Length of the yarn=?

**Calculation**:

**By definition of the tex-**

weight of 1000 meter length=19.68 gram (tex=19.68)

i.e. 19.68 gram of yarn weight have=1000 meter length

Then,

1 gram of yarn weight have =1000/19.68

and

5000 gram of yarn weight have=1000*5000/19.68 meter length

Length of yarn=5000000/19.68

=254065.041 meter

Length of yarn=254065.041/1000 km

**Length of yarn=254.065 km**(Answer)