The work index of a material is $6.25 .$ If $80 \%$ of the feed and $80 \%$ of the product pass through IS Sieve No. 340 (3.25 mm opening) and IS Sieve No. 40 ( 0.42 mm opening), respectively, the power consumed in $\mathrm{kW}$ to crush $5000 \mathrm{~kg} \mathrm{~h}^{-1}$ of sorghum is

(A) 9.77

(B) 20.49

(C) 26.29

(D) 32.29

The work index of a material is $6.25 .$ If $80 \%$ of the feed and $80 \%$ of the product pass through IS Sieve No. 340 (3.25 mm opening) and IS Sieve No. 40 ( 0.42 mm opening), respectively, the power consumed in $\mathrm{kW}$ to crush $5000 \mathrm{~kg} \mathrm{~h}^{-1}$ of sorghum is

(A) 9.77

(B) 20.49

(C) 26.29

(D) 32.29

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