a dog takes 3 leaps for every 7 leaps of a hare . if one leap of the dog is equal to 3 leaps of the hare , the ratio of the speed of the dog to that of the hare is :
"explanation : dog : hare = ( 3 * 3 ) leaps of hare : 7 leaps of hare = 9 : 7 . answer : a ) 9 : 7"
divide(multiply(3, 3), 7)