One hundred 1.5 dtex polyester fibres with density of 1.35 g/cm3 are tested on a CRE tensile tester. 95% confidence range of main tensile properties are follows
Tenacity (gf/tex): 35 
5.32
Elongation (%) : 30 7
Initial Modulus (gf/tex) : 35 9
Question 59 (Textile Engineering & Fibre Science)
The average initial modulus in GPa is
| (A) | 10.58 |
| (B) | 7.58 |
| (C) | 5.58 |
| (D) | 2.58 |
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