Question

There are 6 times as many dogs as cats. If the total number of dogs and cats is 21 how many dogs are there?

Answer 1

`18`

Explanation:

There is `1` cat for every `6` dogs. So that is `7` animals in `1` "set".

We have `21/7` "sets", which means `3` sets.

`6` dogs per "set" and `3` "sets" means there are `6xx3` or `18` dogs.