AlgebraEasyCats and dogs at a shelter
Algebra practice question
A shelter has 12 animals, all cats and dogs, with twice as many cats as dogs. How many dogs are there?
Answer: 4
d + 2d = 12 gives 3d = 12, so d = 4.
Common wrong answers
- If you answered 3
- 3 divides 12 by 4.
- If you answered 6
- 6 halves 12, ignoring the ratio.
- If you answered 8
- 8 is the number of cats.
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