Textile Engineering > GATE 2010 > Cotton
30 bales of 3.5 Mi and 40 bales of 4.0 Mi cotton fibres (Mi is Micronaire value of cotton fibres) are already available in the raw material inventory of the mill. What is the approximate Mi value required of another 30 bales so that the resultant mean Mi of the total 100 bales will be 4.0?
A
3.4
B
4.7
C
5.2
D
6.0

Correct : b

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