A tall silo having height to diameter ratio of 2 is holding 480 tons wheat of bulk density $960 \mathrm{~kg} \mathrm{~m}^{-3}$. The angle of internal friction for wheat is $25^{\circ}$ and for wheat and wall surface is $24^{\circ} .$ Applying Airy formula, the maximum lateral pressure in $\mathrm{kPa}$ at the bottom of the bin section is

(A) 40.24

(B) 41.79

(C) 42.83

(D) 42.92

A tall silo having height to diameter ratio of 2 is holding 480 tons wheat of bulk density $960 \mathrm{~kg} \mathrm{~m}^{-3}$. The angle of internal friction for wheat is $25^{\circ}$ and for wheat and wall surface is $24^{\circ} .$ Applying Airy formula, the maximum lateral pressure in $\mathrm{kPa}$ at the bottom of the bin section is

(A) 40.24

(B) 41.79

(C) 42.83

(D) 42.92

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