Answer the following question, with explanation first.
A racng car travels k kilometres in n hours. How many miles will it travel in x hours at the same rate?\nOptions:\n(A) knx\n(B) k⁄n\n(C) kn⁄x\n(D) kx\n(E) kx⁄n

(E)
Given Speed = k/n\nTo Find distance in x hours with same speed\nDistance = speed * time\nDistance = k/n*x = kx/n.

The answer is (E)