Question

A distance is covered at a certain speed in a certain time if the double of this distance is covered in four times the time then what is the ration of the speed

Answer 1

Answer:

Let the original speed be S1 and time t1 and distance be D.

Now,

(D2)2t1=S2S2=D4t1andS1=Dt1Thus,S1S2=41=4:1