A cat leaps 5 leaps for every 4 leaps of a dog, but 2 leaps of the dog are equal to 3 leaps of the cat. What is the ratio of the speed of the cat to that of the dog? Choose the most appropriate option:
A) 5 : 6	B) 3 : 2	C) 4 : 8	D) 1 : 2	E) 7 : 8

Rationale: given ; 2 dog = 3 cat ; or , dog / cat = 3 / 2 ; let cat ' s 1 leap = 2 meter and dogs 1 leap = 3 meter . then , ratio of speed of cat and dog = 2 * 5 / 3 * 4 = 5 : 6 . ' ' answer : 5 : 6 ;
Answer: A