The ratio of cats to dogs is 5 to 7. If there are 20 cats then determine the number of dogs.
28
20
35
21
Ratio of cats: dogs = 5:7 Actual count of the number of cats = 20 57 = 20? 57 × 44 = 2028 So, actual account of number of dogs = 28
In a house, there are dogs, cats and parrots in the ratio3:7:5. If the number of cats was more than the number of dogs by a multiple of both 9 and 7, what is the minimum number of pets in the house?