A dog takes 10 leaps for every 2 leaps of a hare. If one leap of the dog is equal to 2 leaps of the hare, the ratio of the speed of the dog to that of the hare is : Options
A) 5:1  B) 10:1  C) 15:1  D) 20:1  E) 25:1
Explanation:   Dog : Hare = (10*2) leaps of hare : 2 leaps of hare = 20 : 2.   Answer: 10:1) 10:1
<result>B</result>
A dog takes 10 leaps for every 2 leaps of a hare. If one leap of the dog is equal to 2 leaps of the hare, the ratio of the speed of the dog to that of the hare is :