(a) Evaluate: ${2^7×3^4×5^3}/{2^3×3^2×5^2}$, leaving your answer in standard form.

(b) Kwame rode a bicycle for a distance of x km and walked for another ½ hour at a rate of 6 km/hour. If Kwame covered a total distance of 10 km, find the distance x he covered by bicycle.

(c) A rectangular tank of length 22 cm, width 9 cm and height 16 cm is filled with water.
The water is poured into a cylindrical container of radius 6 cm.
Calculate the :
(i) volume of the rectangular tank
(ii) depth of water in the cylindrical container.

[Take π = 22/7]