If the radii of the circular ends of a bucket of height $40 \mathrm{cm}$ are of lengths $35 \mathrm{cm}$ and $14 \mathrm{cm}$, then the volume of the bucket in cubic centimeters is $(\text{Take} \mathrm{\pi }=22/7)$

A reservoir is in the shape of a frustum of a right circular cone. It is $8 \mathrm{m}$ across at the top and $4 \mathrm{m}$ across at the bottom. If it is $6 \mathrm{m}$ deep, then its capacity is $(\text{Take} \mathrm{\pi }=22/7)$