**According to the ratio of dogs to cats, if there are 20 cats, there will be 35 dogs.**

<u>**Explanation:**</u>

Let the number of dogs be d and the number of cats be c

If the ratio of dogs to cats is 49:28, then the ratio of d : c would be

On reducing the fraction, we get

It is shown that the number of cats is reduced to 20.

So, let the number of dogs after sometime be x

Thus,

After cross multiplying we get:

140 = 4x

x = 35

**According to the ratio of dogs to cats, if there are 20 cats, there will be 35 dogs.**