A dog takes 5 leaps for every 8 leaps of a hare. If one leap of the dog is equal to 4 leaps of the hare, the ratio of the speed of the dog to that of the hare is :
Options:  A) 5 : 8  B) 5 : 3  C) 5 : 2  D) 5 : 9  E) 2 : 5

Rationale: "explanation : dog : hare = ( 5 * 4 ) leaps of hare : 8 leaps of hare = 20 : 8 - - > 10 : 4 - - > 5 : 2 answer : c"
Answer: C